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Commit 82666020 authored by Al Viro's avatar Al Viro
Browse files

[PATCH] fix bdev leak in block_dev.c do_open() 



Callers expect it to drop reference to bdev on all failure exits.

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 77e69dac

fs/block_dev.c

+3 −1
Original line number Diff line number Diff line
@@ -941,8 +941,10 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) 
	 * hooks: /n/, see "layering violations".

	 */

	ret = devcgroup_inode_permission(bdev->bd_inode, perm);

	if (ret != 0)

	if (ret != 0) {

		bdput(bdev);

		return ret;

	}



	ret = -ENXIO;

	file->f_mapping = bdev->bd_inode->i_mapping;