trace-cmd: Add sanity check of tracefs_get_tracing_file() input parameter.

The input parameter "name" of tracefs_get_tracing_file() API is mandatory,
it cannot be NULL. A check is added to verify this.

Link: http://lore.kernel.org/linux-trace-devel/20200129095421.881786-4-tz.stoyanov@gmail.com

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
1 file changed
tree: c59d81a2205037dddc46c12e282c2f9e74ae8573
  1. include/
  2. Makefile
  3. tracefs-events.c
  4. tracefs-instance.c
  5. tracefs-utils.c