trace-cmd: Fix segmentation fault in trace-cmd record on invalid event hooks
Currently passing an invalid event hook to trace-cmd record causes a
segmentation fault, e.g.
$ sudo trace-cmd record -e irq -H foobar
Invalid hook format 'foobar'
Segmentation fault
Fix this by checking the return value of tracecmd_create_event_hook().
Link: http://lore.kernel.org/linux-trace-devel/20191024124517.19320-1-kaslevs@vmware.com
Signed-off-by: Slavomir Kaslev <kaslevs@vmware.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
1 file changed
