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
......@@ -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;
......
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