tools/testing/selftests/ipc/msgque.c: handle msgget failure return correctly

A failed msgget causes the test to return an uninitialised value in ret.
Assign ret to -errno on error exit.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/tools/testing/selftests/ipc/msgque.c b/tools/testing/selftests/ipc/msgque.c
index d66418237d21..aa290c0de6f5 100644
--- a/tools/testing/selftests/ipc/msgque.c
+++ b/tools/testing/selftests/ipc/msgque.c
@@ -201,6 +201,7 @@ int main(int argc, char **argv)
 
         msgque.msq_id = msgget(msgque.key, IPC_CREAT | IPC_EXCL | 0666);
         if (msgque.msq_id == -1) {
+                err = -errno;
                 printf("Can't create queue\n");
                 goto err_out;
         }