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| author | Eric Sandeen <sandeen@redhat.com> | 2014-10-02 09:27:09 +1000 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2014-10-02 09:27:09 +1000 |
| commit | 5cca3f611d159e5a4a5ec60413bd09948ef40aea (patch) | |
| tree | 393d1019eb362fc023addf6144972de83fb06dda /fs/xfs | |
| parent | 04dd1a0d4b17a71220eae4fb313218f15a49bcdd (diff) | |
| download | blackbird-op-linux-5cca3f611d159e5a4a5ec60413bd09948ef40aea.tar.gz blackbird-op-linux-5cca3f611d159e5a4a5ec60413bd09948ef40aea.zip | |
xfs: check for null dquot in xfs_quota_calc_throttle()
Coverity spotted this.
Granted, we *just* checked xfs_inod_dquot() in the caller (by
calling xfs_quota_need_throttle). However, this is the only place we
don't check the return value but the check is cheap and future-proof
so add it.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_iomap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index e9c47b6f5e5a..afcf3c926565 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -404,8 +404,8 @@ xfs_quota_calc_throttle( int shift = 0; struct xfs_dquot *dq = xfs_inode_dquot(ip, type); - /* over hi wmark, squash the prealloc completely */ - if (dq->q_res_bcount >= dq->q_prealloc_hi_wmark) { + /* no dq, or over hi wmark, squash the prealloc completely */ + if (!dq || dq->q_res_bcount >= dq->q_prealloc_hi_wmark) { *qblocks = 0; *qfreesp = 0; return; |
