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| author | Michal Nazarewicz <mina86@mina86.com> | 2013-11-12 13:30:05 +0100 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2013-11-21 10:55:45 +0100 |
| commit | e3c4269d139db7471ee560fb30948179e180b3d4 (patch) | |
| tree | 667d0743b7942e023b15b687714c3015fce2e868 /fs/gfs2/inode.c | |
| parent | Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/pow... (diff) | |
| download | linux-e3c4269d139db7471ee560fb30948179e180b3d4.tar.xz linux-e3c4269d139db7471ee560fb30948179e180b3d4.zip | |
GFS2: fix potential NULL pointer dereference
Commit [e66cf1610: GFS2: Use lockref for glocks] replaced call:
atomic_read(&gi->gl->gl_ref) == 0
with:
__lockref_is_dead(&gl->gl_lockref)
therefore changing how gl is accessed, from gi->gl to plan gl.
However, gl can be a NULL pointer, and so gi->gl needs to be
used instead (which is guaranteed not to be NULL because fo
the while loop checking that condition).
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions