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authorJiri Slaby <jirislaby@gmail.com>2009-01-17 12:04:36 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2009-02-02 09:53:29 -0800
commit624fb2d172a735c3ea5efb043e00034d6faf8612 (patch)
tree3bb42700ffa14ab0356f9b75abf5c00fd92d17b0
parent7b4fec3251eb3c770dc8baa79df8eec5403dabb2 (diff)
relay: fix lock imbalance in relay_late_setup_files
commit b786c6a98ef6fa81114ba7b9fbfc0d67060775e3 upstream. One fail path in relay_late_setup_files() omits mutex_unlock(&relay_channels_mutex); Add it. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--kernel/relay.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/relay.c b/kernel/relay.c
index 09ac2008f77b..9d79b7854fa6 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -663,8 +663,10 @@ int relay_late_setup_files(struct rchan *chan,
mutex_lock(&relay_channels_mutex);
/* Is chan already set up? */
- if (unlikely(chan->has_base_filename))
+ if (unlikely(chan->has_base_filename)) {
+ mutex_unlock(&relay_channels_mutex);
return -EEXIST;
+ }
chan->has_base_filename = 1;
chan->parent = parent;
curr_cpu = get_cpu();