ieee1394: raw1394: Do not leak memory on failed trylock.
Do not leak the allocated memory in case the mutex_trylock() failed
to acquire the lock.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
This bug does not happen in practice: All raw1394 clients use
libraw1394, and accesses to a libraw1394 handle need to be serialized
by the client. This is documented in libraw1394's API reference.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index da5f882..0bc3d78 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -2272,8 +2272,10 @@
return -EFAULT;
}
- if (!mutex_trylock(&fi->state_mutex))
+ if (!mutex_trylock(&fi->state_mutex)) {
+ free_pending_request(req);
return -EAGAIN;
+ }
switch (fi->state) {
case opened: