commit 71a86444873968fafda87d6ad5855df42c9ea0f0
author Mark Salyzyn <salyzyn@google.com> Wed Mar 18 23:57:48 2015 +0000
committer Android Git Automerger <android-git-automerger@android.com> Wed Mar 18 23:57:48 2015 +0000
tree b1fda33e613fa078443e7e62331649a3c9857a9f
parent 99063631f851a3c12f19aa38091e413bc469f4ff
parent 4e0a252372052f194764c3c0a511e17d22549e6c

am 4e0a2523: Merge "liblog: reject empty logging messages"

* commit '4e0a252372052f194764c3c0a511e17d22549e6c':
  liblog: reject empty logging messages

liblog/logd_write.c

diff --git a/liblog/logd_write.c b/liblog/logd_write.c
index a865093..8f8cc3f 100644
--- a/liblog/logd_write.c
+++ b/liblog/logd_write.c
@@ -178,6 +178,10 @@
     static pid_t last_pid = (pid_t) -1;
     static atomic_int_fast32_t dropped;
 
+    if (!nr) {
+        return -EINVAL;
+    }
+
     if (last_uid == AID_ROOT) { /* have we called to get the UID yet? */
         last_uid = getuid();
     }