From: Josef Bacik <jbacik@fb.com>
Date: Tue, 24 Mar 2015 13:57:49 +0000 (-0400)
Subject: tools lib traceevent: Handle NULL comm name
X-Git-Tag: omap-for-v4.2/o2_dc~146^2~57^2~10
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=deab6f55a2fe6fe044af61c9aad6a8e90cda6499;p=pandora-kernel.git

tools lib traceevent: Handle NULL comm name

It is possible that a pid has no associated comm attached to it, although it
can still be passed to pevent_register_comm().

But if comm is NULL, it will cause strdup() to segfault. To prevent this
from happening, if comm is NULL use the default "<...>" name for the
pid.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20150324135922.549965495@goodmis.org
Link: http://lkml.kernel.org/p/1403799732-30308-1-git-send-email-jbacik@fb.com
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

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