Commit fa1f68db authored May 24, 2010 by Samu Onkalo Committed by Linus Torvalds May 25, 2010

drivers: misc: pass miscdevice pointer via file private data

For misc devices, inode->i_cdev doesn't point to the device drivers own
data.  Link between file operations and device driver internal data is
lost.  Pass pointer to misc device struct via file private data for driver
open function use.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 6c5e303a

drivers/char/misc.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -144,6 +144,7 @@ static int misc_open(struct inode * inode, struct file * file)
		old_fops = file->f_op;
		file->f_op = new_fops;
		if (file->f_op->open) {
		file->private_data = c;
		err=file->f_op->open(inode,file);
		if (err) {
		fops_put(file->f_op);

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