Commit-ID: deab6f55a2fe6fe044af61c9aad6a8e90cda6499 Gitweb: http://git.kernel.org/tip/deab6f55a2fe6fe044af61c9aad6a8e90cda6499 Author: Josef Bacik <[email protected]> AuthorDate: Tue, 24 Mar 2015 09:57:49 -0400 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Tue, 24 Mar 2015 12:10:26 -0300
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 <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Link: http://lkml.kernel.org/p/[email protected] Signed-off-by: Steven Rostedt <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/lib/traceevent/event-parse.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 8e5e4f6..31d4e7d 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -304,7 +304,10 @@ int pevent_register_comm(struct pevent *pevent, const char *comm, int pid) if (!item) return -1; - item->comm = strdup(comm); + if (comm) + item->comm = strdup(comm); + else + item->comm = strdup("<...>"); if (!item->comm) { free(item); return -1; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
