In case an open is racing with a debugfs file removal, the corresponding error path in open_proxy_open() releases its SRCU read side critical section twice, i.e. it does a double unlock.
Fix that by purging the extra unlock operation. Signed-off-by: Nicolai Stange <[email protected]> --- fs/debugfs/file.c | 1 - 1 file changed, 1 deletion(-) diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c index 6a4b667..9c1c9a0 100644 --- a/fs/debugfs/file.c +++ b/fs/debugfs/file.c @@ -108,7 +108,6 @@ static int open_proxy_open(struct inode *inode, struct file *filp) r = debugfs_use_file_start(dentry, &srcu_idx); if (r) { - debugfs_use_file_finish(srcu_idx); r = -ENOENT; goto out; } -- 2.7.2
