Commit 6b55b451 authored by Lad, Prabhakar's avatar Lad, Prabhakar Committed by Mauro Carvalho Chehab
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[media] media: davinci: vpbe_display: convert to devm* api



Replace existing resource handling in the driver with managed
device resource, this ensures more consistent error values and
simplifies error paths.

Signed-off-by: default avatarLad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent 418f7d60
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+7 −16
Original line number Diff line number Diff line
@@ -1743,11 +1743,10 @@ static int vpbe_display_probe(struct platform_device *pdev)

	printk(KERN_DEBUG "vpbe_display_probe\n");
	/* Allocate memory for vpbe_display */
	disp_dev = kzalloc(sizeof(struct vpbe_display), GFP_KERNEL);
	if (!disp_dev) {
		printk(KERN_ERR "ran out of memory\n");
	disp_dev = devm_kzalloc(&pdev->dev, sizeof(struct vpbe_display),
				GFP_KERNEL);
	if (!disp_dev)
		return -ENOMEM;
	}

	spin_lock_init(&disp_dev->dma_queue_lock);
	/*
@@ -1786,26 +1785,24 @@ static int vpbe_display_probe(struct platform_device *pdev)
	}

	irq = res->start;
	if (request_irq(irq, venc_isr,  IRQF_DISABLED, VPBE_DISPLAY_DRIVER,
		disp_dev)) {
	err = devm_request_irq(&pdev->dev, irq, venc_isr, IRQF_DISABLED,
			       VPBE_DISPLAY_DRIVER, disp_dev);
	if (err) {
		v4l2_err(&disp_dev->vpbe_dev->v4l2_dev,
				"Unable to request interrupt\n");
		err = -ENODEV;
		goto probe_out;
	}

	for (i = 0; i < VPBE_DISPLAY_MAX_DEVICES; i++) {
		if (register_device(disp_dev->dev[i], disp_dev, pdev)) {
			err = -ENODEV;
			goto probe_out_irq;
			goto probe_out;
		}
	}

	printk(KERN_DEBUG "Successfully completed the probing of vpbe v4l2 device\n");
	return 0;

probe_out_irq:
	free_irq(res->start, disp_dev);
probe_out:
	for (k = 0; k < VPBE_DISPLAY_MAX_DEVICES; k++) {
		/* Get the pointer to the layer object */
@@ -1817,7 +1814,6 @@ probe_out:
				kfree(disp_dev->dev[k]);
		}
	}
	kfree(disp_dev);
	return err;
}

@@ -1830,15 +1826,10 @@ static int vpbe_display_remove(struct platform_device *pdev)
	struct vpbe_layer *vpbe_display_layer;
	struct vpbe_display *disp_dev = platform_get_drvdata(pdev);
	struct vpbe_device *vpbe_dev = disp_dev->vpbe_dev;
	struct resource *res;
	int i;

	v4l2_dbg(1, debug, &vpbe_dev->v4l2_dev, "vpbe_display_remove\n");

	/* unregister irq */
	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
	free_irq(res->start, disp_dev);

	/* deinitialize the vpbe display controller */
	if (NULL != vpbe_dev->ops.deinitialize)
		vpbe_dev->ops.deinitialize(&pdev->dev, vpbe_dev);