add check for malloc

fix a potential null pointer deference error

Signed-off-by: Walter Harms <wharms@bfs.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/replywait.c b/src/replywait.c
index d87a05a..46c11e0 100644
--- a/src/replywait.c
+++ b/src/replywait.c
@@ -60,6 +60,8 @@ _IceAddReplyWait (
     }
 
     savedReplyWait = malloc (sizeof (_IceSavedReplyWait));
+    if (!savedReplyWait)
+      return;
 
     savedReplyWait->reply_wait = replyWait;
     savedReplyWait->reply_ready = False;