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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-22 20:39:44 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-22 20:39:44 +0400 |
| commit | c85e07278e50bdfbb50fe038d9cca01cdf1074d1 (patch) | |
| tree | 28dbd0761d6d11d14a25b99d1ccc705e4d2c361f | |
| parent | fb0d1eb8925daaabc45ef67be740a41f49303d07 (diff) | |
| parent | ea0341e071527d5cec350917b01ab901af09d758 (diff) | |
| download | linux-c85e07278e50bdfbb50fe038d9cca01cdf1074d1.tar.xz | |
Merge tag 'gfs2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes
Pull GFS2 fixes from Steven Whitehouse:
"A couple of small, but important bug fixes for GFS2. The first one
fixes a possible NULL pointer dereference, and the second one resolves
a reference counting issue in one of the lesser used paths through
atomic_open"
* tag 'gfs2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes:
GFS2: Fix ref count bug relating to atomic_open
GFS2: fix potential NULL pointer dereference
| -rw-r--r-- | fs/gfs2/glock.c | 3 | ||||
| -rw-r--r-- | fs/gfs2/inode.c | 5 |
2 files changed, 6 insertions, 2 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index e66a8009aff1..c8420f7e4db6 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -1899,7 +1899,8 @@ static int gfs2_glock_iter_next(struct gfs2_glock_iter *gi) gi->nhash = 0; } /* Skip entries for other sb and dead entries */ - } while (gi->sdp != gi->gl->gl_sbd || __lockref_is_dead(&gl->gl_lockref)); + } while (gi->sdp != gi->gl->gl_sbd || + __lockref_is_dead(&gi->gl->gl_lockref)); return 0; } diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index 1615df16cf4e..7119504159f1 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -1171,8 +1171,11 @@ static int gfs2_atomic_open(struct inode *dir, struct dentry *dentry, if (d != NULL) dentry = d; if (dentry->d_inode) { - if (!(*opened & FILE_OPENED)) + if (!(*opened & FILE_OPENED)) { + if (d == NULL) + dget(dentry); return finish_no_open(file, dentry); + } dput(d); return 0; } |