Commit c7f439b9 authored by David S. Miller's avatar David S. Miller
Browse files

[VIDEO]: Fix OOPS in all SBUS framebuffer drivers. 



All of these drivers use a silly:

struct all_info {
	struct fb_info info;
	struct foo_par par;
};

struct all_info *all = kzalloc(sizeof(*all), GFP_KERNEL);
all->info.par = &all->par;

etc. etc. code sequence, basically replicating the provided
framebuffer_alloc()/framebuffer_release(), and doing it badly.

Not only is this massive code duplication, it also caused a
bug in that we weren't setting the fb_info->device pointer
which results in an OOPS when fb_is_primary_device() runs.

Fix all of this by using framebuffer_{alloc,release}() and
passing in "&of_device->dev" as the device pointer.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a0afaa6a

drivers/video/bw2.c

+53 −52
Original line number Diff line number Diff line
@@ -279,90 +279,91 @@ static void __devinit bw2_do_default_mode(struct bw2_par *par, 
	}

}



struct all_info {

	struct fb_info info;

	struct bw2_par par;

};



static int __devinit bw2_init_one(struct of_device *op)

static int __devinit bw2_probe(struct of_device *op, const struct of_device_id *match)

{

	struct device_node *dp = op->node;

	struct all_info *all;

	struct fb_info *info;

	struct bw2_par *par;

	int linebytes, err;



	all = kzalloc(sizeof(*all), GFP_KERNEL);

	if (!all)

		return -ENOMEM;

	info = framebuffer_alloc(sizeof(struct bw2_par), &op->dev);



	err = -ENOMEM;

	if (!info)

		goto out_err;

	par = info->par;



	spin_lock_init(&all->par.lock);

	spin_lock_init(&par->lock);



	all->par.physbase = op->resource[0].start;

	all->par.which_io = op->resource[0].flags & IORESOURCE_BITS;

	par->physbase = op->resource[0].start;

	par->which_io = op->resource[0].flags & IORESOURCE_BITS;



	sbusfb_fill_var(&all->info.var, dp->node, 1);

	sbusfb_fill_var(&info->var, dp->node, 1);

	linebytes = of_getintprop_default(dp, "linebytes",

					  all->info.var.xres);

					  info->var.xres);



	all->info.var.red.length = all->info.var.green.length =

		all->info.var.blue.length = all->info.var.bits_per_pixel;

	all->info.var.red.offset = all->info.var.green.offset =

		all->info.var.blue.offset = 0;

	info->var.red.length = info->var.green.length =

		info->var.blue.length = info->var.bits_per_pixel;

	info->var.red.offset = info->var.green.offset =

		info->var.blue.offset = 0;



	all->par.regs = of_ioremap(&op->resource[0], BWTWO_REGISTER_OFFSET,

	par->regs = of_ioremap(&op->resource[0], BWTWO_REGISTER_OFFSET,

			       sizeof(struct bw2_regs), "bw2 regs");

	if (!par->regs)

		goto out_release_fb;



	if (!of_find_property(dp, "width", NULL))

		bw2_do_default_mode(&all->par, &all->info, &linebytes);

		bw2_do_default_mode(par, info, &linebytes);



	all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);

	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);



	all->info.flags = FBINFO_DEFAULT;

	all->info.fbops = &bw2_ops;

	info->flags = FBINFO_DEFAULT;

	info->fbops = &bw2_ops;



	all->info.screen_base =

		of_ioremap(&op->resource[0], 0, all->par.fbsize, "bw2 ram");

	all->info.par = &all->par;

	info->screen_base = of_ioremap(&op->resource[0], 0,

				       par->fbsize, "bw2 ram");

	if (!info->screen_base)

		goto out_unmap_regs;



	bw2_blank(0, &all->info);

	bw2_blank(0, info);



	bw2_init_fix(&all->info, linebytes);

	bw2_init_fix(info, linebytes);



	err= register_framebuffer(&all->info);

	if (err < 0) {

		of_iounmap(&op->resource[0],

			   all->par.regs, sizeof(struct bw2_regs));

		of_iounmap(&op->resource[0],

			   all->info.screen_base, all->par.fbsize);

		kfree(all);

		return err;

	}

	err = register_framebuffer(info);

	if (err < 0)

		goto out_unmap_screen;



	dev_set_drvdata(&op->dev, all);

	dev_set_drvdata(&op->dev, info);



	printk("%s: bwtwo at %lx:%lx\n",

	       dp->full_name,

	       all->par.which_io, all->par.physbase);

	       dp->full_name, par->which_io, par->physbase);



	return 0;

}



static int __devinit bw2_probe(struct of_device *dev, const struct of_device_id *match)

{

	struct of_device *op = to_of_device(&dev->dev);

out_unmap_screen:

	of_iounmap(&op->resource[0], info->screen_base, par->fbsize);



out_unmap_regs:

	of_iounmap(&op->resource[0], par->regs, sizeof(struct bw2_regs));



	return bw2_init_one(op);

out_release_fb:

	framebuffer_release(info);



out_err:

	return err;

}



static int __devexit bw2_remove(struct of_device *op)

{

	struct all_info *all = dev_get_drvdata(&op->dev);

	struct fb_info *info = dev_get_drvdata(&op->dev);

	struct bw2_par *par = info->par;



	unregister_framebuffer(&all->info);

	unregister_framebuffer(info);



	of_iounmap(&op->resource[0], all->par.regs, sizeof(struct bw2_regs));

	of_iounmap(&op->resource[0], all->info.screen_base, all->par.fbsize);

	of_iounmap(&op->resource[0], par->regs, sizeof(struct bw2_regs));

	of_iounmap(&op->resource[0], info->screen_base, par->fbsize);



	kfree(all);

	framebuffer_release(info);



	dev_set_drvdata(&op->dev, NULL);

drivers/video/cg14.c

+72 −78
Original line number Diff line number Diff line
@@ -448,81 +448,79 @@ static struct sbus_mmap_map __cg14_mmap_map[CG14_MMAP_ENTRIES] __devinitdata = { 
	{ .size = 0 }

};



struct all_info {

	struct fb_info info;

	struct cg14_par par;

};



static void cg14_unmap_regs(struct of_device *op, struct all_info *all)

static void cg14_unmap_regs(struct of_device *op, struct fb_info *info,

			    struct cg14_par *par)

{

	if (all->par.regs)

	if (par->regs)

		of_iounmap(&op->resource[0],

			   all->par.regs, sizeof(struct cg14_regs));

	if (all->par.clut)

			   par->regs, sizeof(struct cg14_regs));

	if (par->clut)

		of_iounmap(&op->resource[0],

			   all->par.clut, sizeof(struct cg14_clut));

	if (all->par.cursor)

			   par->clut, sizeof(struct cg14_clut));

	if (par->cursor)

		of_iounmap(&op->resource[0],

			   all->par.cursor, sizeof(struct cg14_cursor));

	if (all->info.screen_base)

			   par->cursor, sizeof(struct cg14_cursor));

	if (info->screen_base)

		of_iounmap(&op->resource[1],

			   all->info.screen_base, all->par.fbsize);

			   info->screen_base, par->fbsize);

}



static int __devinit cg14_init_one(struct of_device *op)

static int __devinit cg14_probe(struct of_device *op, const struct of_device_id *match)

{

	struct device_node *dp = op->node;

	struct all_info *all;

	struct fb_info *info;

	struct cg14_par *par;

	int is_8mb, linebytes, i, err;



	all = kzalloc(sizeof(*all), GFP_KERNEL);

	if (!all)

		return -ENOMEM;

	info = framebuffer_alloc(sizeof(struct cg14_par), &op->dev);



	err = -ENOMEM;

	if (!info)

		goto out_err;

	par = info->par;



	spin_lock_init(&all->par.lock);

	spin_lock_init(&par->lock);



	sbusfb_fill_var(&all->info.var, dp->node, 8);

	all->info.var.red.length = 8;

	all->info.var.green.length = 8;

	all->info.var.blue.length = 8;

	sbusfb_fill_var(&info->var, dp->node, 8);

	info->var.red.length = 8;

	info->var.green.length = 8;

	info->var.blue.length = 8;



	linebytes = of_getintprop_default(dp, "linebytes",

					  all->info.var.xres);

	all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);

					  info->var.xres);

	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);



	if (!strcmp(dp->parent->name, "sbus") ||

	    !strcmp(dp->parent->name, "sbi")) {

		all->par.physbase = op->resource[0].start;

		all->par.iospace = op->resource[0].flags & IORESOURCE_BITS;

		par->physbase = op->resource[0].start;

		par->iospace = op->resource[0].flags & IORESOURCE_BITS;

	} else {

		all->par.physbase = op->resource[1].start;

		all->par.iospace = op->resource[0].flags & IORESOURCE_BITS;

		par->physbase = op->resource[1].start;

		par->iospace = op->resource[0].flags & IORESOURCE_BITS;

	}



	all->par.regs = of_ioremap(&op->resource[0], 0,

	par->regs = of_ioremap(&op->resource[0], 0,

			       sizeof(struct cg14_regs), "cg14 regs");

	all->par.clut = of_ioremap(&op->resource[0], CG14_CLUT1,

	par->clut = of_ioremap(&op->resource[0], CG14_CLUT1,

			       sizeof(struct cg14_clut), "cg14 clut");

	all->par.cursor = of_ioremap(&op->resource[0], CG14_CURSORREGS,

	par->cursor = of_ioremap(&op->resource[0], CG14_CURSORREGS,

				 sizeof(struct cg14_cursor), "cg14 cursor");



	all->info.screen_base = of_ioremap(&op->resource[1], 0,

					   all->par.fbsize, "cg14 ram");

	info->screen_base = of_ioremap(&op->resource[1], 0,

				       par->fbsize, "cg14 ram");



	if (!all->par.regs || !all->par.clut || !all->par.cursor ||

	    !all->info.screen_base)

		cg14_unmap_regs(op, all);

	if (!par->regs || !par->clut || !par->cursor || !info->screen_base)

		goto out_unmap_regs;



	is_8mb = (((op->resource[1].end - op->resource[1].start) + 1) ==

		  (8 * 1024 * 1024));



	BUILD_BUG_ON(sizeof(all->par.mmap_map) != sizeof(__cg14_mmap_map));

	BUILD_BUG_ON(sizeof(par->mmap_map) != sizeof(__cg14_mmap_map));

		

	memcpy(&all->par.mmap_map, &__cg14_mmap_map,

	       sizeof(all->par.mmap_map));

	memcpy(&par->mmap_map, &__cg14_mmap_map, sizeof(par->mmap_map));



	for (i = 0; i < CG14_MMAP_ENTRIES; i++) {

		struct sbus_mmap_map *map = &all->par.mmap_map[i];

		struct sbus_mmap_map *map = &par->mmap_map[i];



		if (!map->size)

			break;
@@ -536,59 +534,55 @@ static int __devinit cg14_init_one(struct of_device *op) 
			map->size *= 2;

	}



	all->par.mode = MDI_8_PIX;

	all->par.ramsize = (is_8mb ? 0x800000 : 0x400000);

	par->mode = MDI_8_PIX;

	par->ramsize = (is_8mb ? 0x800000 : 0x400000);



	all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;

	all->info.fbops = &cg14_ops;

	all->info.par = &all->par;

	info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;

	info->fbops = &cg14_ops;



	__cg14_reset(&all->par);

	__cg14_reset(par);



	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {

		cg14_unmap_regs(op, all);

		kfree(all);

		return -ENOMEM;

	}

	fb_set_cmap(&all->info.cmap, &all->info);

	if (fb_alloc_cmap(&info->cmap, 256, 0))

		goto out_unmap_regs;



	cg14_init_fix(&all->info, linebytes, dp);

	fb_set_cmap(&info->cmap, info);



	err = register_framebuffer(&all->info);

	if (err < 0) {

		fb_dealloc_cmap(&all->info.cmap);

		cg14_unmap_regs(op, all);

		kfree(all);

		return err;

	}

	cg14_init_fix(info, linebytes, dp);



	err = register_framebuffer(info);

	if (err < 0)

		goto out_dealloc_cmap;



	dev_set_drvdata(&op->dev, all);

	dev_set_drvdata(&op->dev, info);



	printk("%s: cgfourteen at %lx:%lx, %dMB\n",

	       dp->full_name,

	       all->par.iospace, all->par.physbase,

	       all->par.ramsize >> 20);

	       par->iospace, par->physbase,

	       par->ramsize >> 20);



	return 0;

}



static int __devinit cg14_probe(struct of_device *dev, const struct of_device_id *match)

{

	struct of_device *op = to_of_device(&dev->dev);

out_dealloc_cmap:

	fb_dealloc_cmap(&info->cmap);



out_unmap_regs:

	cg14_unmap_regs(op, info, par);



	return cg14_init_one(op);

out_err:

	return err;

}



static int __devexit cg14_remove(struct of_device *op)

{

	struct all_info *all = dev_get_drvdata(&op->dev);

	struct fb_info *info = dev_get_drvdata(&op->dev);

	struct cg14_par *par = info->par;



	unregister_framebuffer(&all->info);

	fb_dealloc_cmap(&all->info.cmap);

	unregister_framebuffer(info);

	fb_dealloc_cmap(&info->cmap);



	cg14_unmap_regs(op, all);

	cg14_unmap_regs(op, info, par);



	kfree(all);

	framebuffer_release(info);



	dev_set_drvdata(&op->dev, NULL);

drivers/video/cg3.c

+67 −69
Original line number Diff line number Diff line
@@ -353,104 +353,102 @@ static void __devinit cg3_do_default_mode(struct cg3_par *par) 
	}

}



struct all_info {

	struct fb_info info;

	struct cg3_par par;

};



static int __devinit cg3_init_one(struct of_device *op)

static int __devinit cg3_probe(struct of_device *op,

			       const struct of_device_id *match)

{

	struct device_node *dp = op->node;

	struct all_info *all;

	struct fb_info *info;

	struct cg3_par *par;

	int linebytes, err;



	all = kzalloc(sizeof(*all), GFP_KERNEL);

	if (!all)

		return -ENOMEM;

	info = framebuffer_alloc(sizeof(struct cg3_par), &op->dev);



	spin_lock_init(&all->par.lock);

	err = -ENOMEM;

	if (!info)

		goto out_err;

	par = info->par;



	all->par.physbase = op->resource[0].start;

	all->par.which_io = op->resource[0].flags & IORESOURCE_BITS;

	spin_lock_init(&par->lock);



	sbusfb_fill_var(&all->info.var, dp->node, 8);

	all->info.var.red.length = 8;

	all->info.var.green.length = 8;

	all->info.var.blue.length = 8;

	par->physbase = op->resource[0].start;

	par->which_io = op->resource[0].flags & IORESOURCE_BITS;



	sbusfb_fill_var(&info->var, dp->node, 8);

	info->var.red.length = 8;

	info->var.green.length = 8;

	info->var.blue.length = 8;

	if (!strcmp(dp->name, "cgRDI"))

		all->par.flags |= CG3_FLAG_RDI;

	if (all->par.flags & CG3_FLAG_RDI)

		cg3_rdi_maybe_fixup_var(&all->info.var, dp);

		par->flags |= CG3_FLAG_RDI;

	if (par->flags & CG3_FLAG_RDI)

		cg3_rdi_maybe_fixup_var(&info->var, dp);



	linebytes = of_getintprop_default(dp, "linebytes",

					  all->info.var.xres);

	all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);

					  info->var.xres);

	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);



	all->par.regs = of_ioremap(&op->resource[0], CG3_REGS_OFFSET,

	par->regs = of_ioremap(&op->resource[0], CG3_REGS_OFFSET,

			       sizeof(struct cg3_regs), "cg3 regs");

	if (!par->regs)

		goto out_release_fb;



	all->info.flags = FBINFO_DEFAULT;

	all->info.fbops = &cg3_ops;

	all->info.screen_base =

		of_ioremap(&op->resource[0], CG3_RAM_OFFSET,

			   all->par.fbsize, "cg3 ram");

	all->info.par = &all->par;

	info->flags = FBINFO_DEFAULT;

	info->fbops = &cg3_ops;

	info->screen_base = of_ioremap(&op->resource[0], CG3_RAM_OFFSET,

				       par->fbsize, "cg3 ram");

	if (!info->screen_base)

		goto out_unmap_regs;



	cg3_blank(0, &all->info);

	cg3_blank(0, info);



	if (!of_find_property(dp, "width", NULL))

		cg3_do_default_mode(&all->par);



	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {

		of_iounmap(&op->resource[0],

			   all->par.regs, sizeof(struct cg3_regs));

		of_iounmap(&op->resource[0],

			   all->info.screen_base, all->par.fbsize);

		kfree(all);

		return -ENOMEM;

	}

	fb_set_cmap(&all->info.cmap, &all->info);



	cg3_init_fix(&all->info, linebytes, dp);



	err = register_framebuffer(&all->info);

	if (err < 0) {

		fb_dealloc_cmap(&all->info.cmap);

		of_iounmap(&op->resource[0],

			   all->par.regs, sizeof(struct cg3_regs));

		of_iounmap(&op->resource[0],

			   all->info.screen_base, all->par.fbsize);

		kfree(all);

		return err;

	}

		cg3_do_default_mode(par);



	if (fb_alloc_cmap(&info->cmap, 256, 0))

		goto out_unmap_screen;



	fb_set_cmap(&info->cmap, info);



	dev_set_drvdata(&op->dev, all);

	cg3_init_fix(info, linebytes, dp);



	err = register_framebuffer(info);

	if (err < 0)

		goto out_dealloc_cmap;



	dev_set_drvdata(&op->dev, info);



	printk("%s: cg3 at %lx:%lx\n",

	       dp->full_name, all->par.which_io, all->par.physbase);

	       dp->full_name, par->which_io, par->physbase);



	return 0;

}



static int __devinit cg3_probe(struct of_device *dev,

			       const struct of_device_id *match)

{

	struct of_device *op = to_of_device(&dev->dev);

out_dealloc_cmap:

	fb_dealloc_cmap(&info->cmap);



	return cg3_init_one(op);

out_unmap_screen:

	of_iounmap(&op->resource[0], info->screen_base, par->fbsize);



out_unmap_regs:

	of_iounmap(&op->resource[0], par->regs, sizeof(struct cg3_regs));



out_release_fb:

	framebuffer_release(info);



out_err:

	return err;

}



static int __devexit cg3_remove(struct of_device *op)

{

	struct all_info *all = dev_get_drvdata(&op->dev);

	struct fb_info *info = dev_get_drvdata(&op->dev);

	struct cg3_par *par = info->par;



	unregister_framebuffer(&all->info);

	fb_dealloc_cmap(&all->info.cmap);

	unregister_framebuffer(info);

	fb_dealloc_cmap(&info->cmap);



	of_iounmap(&op->resource[0], all->par.regs, sizeof(struct cg3_regs));

	of_iounmap(&op->resource[0], all->info.screen_base, all->par.fbsize);

	of_iounmap(&op->resource[0], par->regs, sizeof(struct cg3_regs));

	of_iounmap(&op->resource[0], info->screen_base, par->fbsize);



	kfree(all);

	framebuffer_release(info);



	dev_set_drvdata(&op->dev, NULL);

drivers/video/cg6.c

+73 −88
Original line number Diff line number Diff line
@@ -653,135 +653,120 @@ static void cg6_chip_init(struct fb_info *info) 
	sbus_writel(info->var.yres - 1, &fbc->clipmaxy);

}



struct all_info {

	struct fb_info info;

	struct cg6_par par;

};



static void cg6_unmap_regs(struct of_device *op, struct all_info *all)

static void cg6_unmap_regs(struct of_device *op, struct fb_info *info,

			   struct cg6_par *par)

{

	if (all->par.fbc)

		of_iounmap(&op->resource[0], all->par.fbc, 4096);

	if (all->par.tec)

		of_iounmap(&op->resource[0],

			   all->par.tec, sizeof(struct cg6_tec));

	if (all->par.thc)

		of_iounmap(&op->resource[0],

			   all->par.thc, sizeof(struct cg6_thc));

	if (all->par.bt)

		of_iounmap(&op->resource[0],

			   all->par.bt, sizeof(struct bt_regs));

	if (all->par.fhc)

		of_iounmap(&op->resource[0],

			   all->par.fhc, sizeof(u32));



	if (all->info.screen_base)

		of_iounmap(&op->resource[0],

			   all->info.screen_base, all->par.fbsize);

	if (par->fbc)

		of_iounmap(&op->resource[0], par->fbc, 4096);

	if (par->tec)

		of_iounmap(&op->resource[0], par->tec, sizeof(struct cg6_tec));

	if (par->thc)

		of_iounmap(&op->resource[0], par->thc, sizeof(struct cg6_thc));

	if (par->bt)

		of_iounmap(&op->resource[0], par->bt, sizeof(struct bt_regs));

	if (par->fhc)

		of_iounmap(&op->resource[0], par->fhc, sizeof(u32));



	if (info->screen_base)

		of_iounmap(&op->resource[0], info->screen_base, par->fbsize);

}



static int __devinit cg6_init_one(struct of_device *op)

static int __devinit cg6_probe(struct of_device *op, const struct of_device_id *match)

{

	struct device_node *dp = op->node;

	struct all_info *all;

	struct fb_info *info;

	struct cg6_par *par;

	int linebytes, err;



	all = kzalloc(sizeof(*all), GFP_KERNEL);

	if (!all)

		return -ENOMEM;

	info = framebuffer_alloc(sizeof(struct cg6_par), &op->dev);



	err = -ENOMEM;

	if (!info)

		goto out_err;

	par = info->par;



	spin_lock_init(&all->par.lock);

	spin_lock_init(&par->lock);



	all->par.physbase = op->resource[0].start;

	all->par.which_io = op->resource[0].flags & IORESOURCE_BITS;

	par->physbase = op->resource[0].start;

	par->which_io = op->resource[0].flags & IORESOURCE_BITS;



	sbusfb_fill_var(&all->info.var, dp->node, 8);

	all->info.var.red.length = 8;

	all->info.var.green.length = 8;

	all->info.var.blue.length = 8;

	sbusfb_fill_var(&info->var, dp->node, 8);

	info->var.red.length = 8;

	info->var.green.length = 8;

	info->var.blue.length = 8;



	linebytes = of_getintprop_default(dp, "linebytes",

					  all->info.var.xres);

	all->par.fbsize = PAGE_ALIGN(linebytes * all->info.var.yres);

					  info->var.xres);

	par->fbsize = PAGE_ALIGN(linebytes * info->var.yres);

	if (of_find_property(dp, "dblbuf", NULL))

		all->par.fbsize *= 4;

		par->fbsize *= 4;



	all->par.fbc = of_ioremap(&op->resource[0], CG6_FBC_OFFSET,

	par->fbc = of_ioremap(&op->resource[0], CG6_FBC_OFFSET,

				  4096, "cgsix fbc");

	all->par.tec = of_ioremap(&op->resource[0], CG6_TEC_OFFSET,

	par->tec = of_ioremap(&op->resource[0], CG6_TEC_OFFSET,

				  sizeof(struct cg6_tec), "cgsix tec");

	all->par.thc = of_ioremap(&op->resource[0], CG6_THC_OFFSET,

	par->thc = of_ioremap(&op->resource[0], CG6_THC_OFFSET,

				  sizeof(struct cg6_thc), "cgsix thc");

	all->par.bt = of_ioremap(&op->resource[0], CG6_BROOKTREE_OFFSET,

	par->bt = of_ioremap(&op->resource[0], CG6_BROOKTREE_OFFSET,

				 sizeof(struct bt_regs), "cgsix dac");

	all->par.fhc = of_ioremap(&op->resource[0], CG6_FHC_OFFSET,

	par->fhc = of_ioremap(&op->resource[0], CG6_FHC_OFFSET,

				  sizeof(u32), "cgsix fhc");



	all->info.flags = FBINFO_DEFAULT | FBINFO_HWACCEL_IMAGEBLIT |

	info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_IMAGEBLIT |

                          FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT;

	all->info.fbops = &cg6_ops;



	all->info.screen_base =  of_ioremap(&op->resource[0], CG6_RAM_OFFSET,

					    all->par.fbsize, "cgsix ram");

	if (!all->par.fbc || !all->par.tec || !all->par.thc ||

	    !all->par.bt || !all->par.fhc || !all->info.screen_base) {

		cg6_unmap_regs(op, all);

		kfree(all);

		return -ENOMEM;

	}

	info->fbops = &cg6_ops;



	all->info.par = &all->par;

	info->screen_base =  of_ioremap(&op->resource[0], CG6_RAM_OFFSET,

					    par->fbsize, "cgsix ram");

	if (!par->fbc || !par->tec || !par->thc ||

	    !par->bt || !par->fhc || !info->screen_base)

		goto out_unmap_regs;



	all->info.var.accel_flags = FB_ACCELF_TEXT;

	info->var.accel_flags = FB_ACCELF_TEXT;



	cg6_bt_init(&all->par);

	cg6_chip_init(&all->info);

	cg6_blank(0, &all->info);

	cg6_bt_init(par);

	cg6_chip_init(info);

	cg6_blank(0, info);



	if (fb_alloc_cmap(&all->info.cmap, 256, 0)) {

		cg6_unmap_regs(op, all);

		kfree(all);

		return -ENOMEM;

	}

	if (fb_alloc_cmap(&info->cmap, 256, 0))

		goto out_unmap_regs;



	fb_set_cmap(&all->info.cmap, &all->info);

	cg6_init_fix(&all->info, linebytes);

	fb_set_cmap(&info->cmap, info);

	cg6_init_fix(info, linebytes);



	err = register_framebuffer(&all->info);

	if (err < 0) {

		cg6_unmap_regs(op, all);

		fb_dealloc_cmap(&all->info.cmap);

		kfree(all);

		return err;

	}

	err = register_framebuffer(info);

	if (err < 0)

		goto out_dealloc_cmap;



	dev_set_drvdata(&op->dev, all);

	dev_set_drvdata(&op->dev, info);



	printk("%s: CGsix [%s] at %lx:%lx\n",

	       dp->full_name,

	       all->info.fix.id,

	       all->par.which_io, all->par.physbase);

	       dp->full_name, info->fix.id,

	       par->which_io, par->physbase);



	return 0;

}



static int __devinit cg6_probe(struct of_device *dev, const struct of_device_id *match)

{

	struct of_device *op = to_of_device(&dev->dev);

out_dealloc_cmap:

	fb_dealloc_cmap(&info->cmap);



	return cg6_init_one(op);

out_unmap_regs:

	cg6_unmap_regs(op, info, par);



out_err:

	return err;

}



static int __devexit cg6_remove(struct of_device *op)

{

	struct all_info *all = dev_get_drvdata(&op->dev);

	struct fb_info *info = dev_get_drvdata(&op->dev);

	struct cg6_par *par = info->par;



	unregister_framebuffer(&all->info);

	fb_dealloc_cmap(&all->info.cmap);

	unregister_framebuffer(info);

	fb_dealloc_cmap(&info->cmap);



	cg6_unmap_regs(op, all);

	cg6_unmap_regs(op, info, par);



	kfree(all);

	framebuffer_release(info);



	dev_set_drvdata(&op->dev, NULL);

drivers/video/ffb.c

+79 −91

File changed.

Preview size limit exceeded, changes collapsed.

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