openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

fs/xfs/quota: Add missing mutex_unlock 

Add a mutex_unlock missing on the error path.  The use of this lock
is balanced elsewhere in the file.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression E1;
@@

* mutex_lock(E1,...);
  <+... when != E1
  if (...) {
    ... when != E1
*   return ...;
  }
  ...+>
* mutex_unlock(E1,...);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Alex Elder <aelder@sgi.com>
This commit is contained in:
Julia Lawall 2010-05-26 15:57:23 +00:00 committed by Alex Elder
parent 3bd0946eb1
commit 38e712ab3d
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/xfs/quota/xfs_qm.c
View File

@ -249,8 +249,10 @@ xfs_qm_hold_quotafs_ref(
if (!xfs_Gqm) {
xfs_Gqm = xfs_Gqm_init();
if (!xfs_Gqm)
if (!xfs_Gqm) {
mutex_unlock(&xfs_Gqm_lock);
return ENOMEM;
}
}
/*