Fix: Set a single return point and mutex unlock

[lttng-tools.git] / src / common / kernel-consumer / kernel-consumer.c

diff --git a/src/common/kernel-consumer/kernel-consumer.c b/src/common/kernel-consumer/kernel-consumer.c
index 4e000fbd167e294c6b9139b6b7bdd2cf0098d6f1..249df8a47bc4789ae9aedee05300e248c52e926e 100644 (file)
--- a/src/common/kernel-consumer/kernel-consumer.c
+++ b/src/common/kernel-consumer/kernel-consumer.c
@@ -502,7 +502,9 @@ int lttng_kconsumer_data_available(struct lttng_consumer_stream *stream)
         */
        ret = pthread_mutex_trylock(&stream->lock);
        if (ret == EBUSY) {
-               goto data_not_available;
+               /* Data not available */
+               ret = 0;
+               goto end;
        }
        /* The stream is now locked so we can do our ustctl calls */
 
@@ -511,14 +513,14 @@ int lttng_kconsumer_data_available(struct lttng_consumer_stream *stream)
                /* There is still data so let's put back this subbuffer. */
                ret = kernctl_put_subbuf(stream->wait_fd);
                assert(ret == 0);
-               pthread_mutex_unlock(&stream->lock);
-               goto data_not_available;
+               goto end_unlock;
        }
 
        /* Data is available to be read for this stream. */
-       pthread_mutex_unlock(&stream->lock);
-       return 1;
+       ret = 1;
 
-data_not_available:
-       return 0;
+end_unlock:
+       pthread_mutex_unlock(&stream->lock);
+end:
+       return ret;
 }