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| author | Sunil Mushran <sunil.mushran@oracle.com> | 2013-09-11 14:19:49 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-11 15:56:34 -0700 |
| commit | 8dd7903e48df3779bc424196c22dc73b66d0643e (patch) | |
| tree | c251a8e5aab3af60b93b5db21569c62aa0ace7a3 /fs/ocfs2/cluster/tcp.c | |
| parent | 7e9b79370733945b25c24e09d663b07c3936d10c (diff) | |
| download | linux-8dd7903e48df3779bc424196c22dc73b66d0643e.tar.gz | |
fs/ocfs2/cluster/tcp.c: fix possible null pointer dereferences
Fix some possible null pointer dereferences that were detected by the static code analyser, smatch. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Reported-by: Dan Carpenter <error27@gmail.com> Reported-by: Guozhonghua <guozhonghua@h3c.com> Cc: Sunil Mushran <sunil.mushran@gmail.com> Cc: Joseph Qi <joseph.qi@huawei.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2/cluster/tcp.c')
| -rw-r--r-- | fs/ocfs2/cluster/tcp.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c index d644dc611425..d04a3c2fad3c 100644 --- a/fs/ocfs2/cluster/tcp.c +++ b/fs/ocfs2/cluster/tcp.c @@ -543,8 +543,9 @@ static void o2net_set_nn_state(struct o2net_node *nn, } if (was_valid && !valid) { - printk(KERN_NOTICE "o2net: No longer connected to " - SC_NODEF_FMT "\n", SC_NODEF_ARGS(old_sc)); + if (old_sc) + printk(KERN_NOTICE "o2net: No longer connected to " + SC_NODEF_FMT "\n", SC_NODEF_ARGS(old_sc)); o2net_complete_nodes_nsw(nn); } @@ -1695,13 +1696,12 @@ static void o2net_start_connect(struct work_struct *work) ret = 0; out: - if (ret) { + if (ret && sc) { printk(KERN_NOTICE "o2net: Connect attempt to " SC_NODEF_FMT " failed with errno %d\n", SC_NODEF_ARGS(sc), ret); /* 0 err so that another will be queued and attempted * from set_nn_state */ - if (sc) - o2net_ensure_shutdown(nn, sc, 0); + o2net_ensure_shutdown(nn, sc, 0); } if (sc) sc_put(sc); |