rv: Fix addition on an uninitialized variable 'run'

The variable run is not initialized however it is being accumulated
by the return value from the call to ikm_run_monitor. Fix this by
initializing run to zero at the start of the function.

Link: https://lkml.kernel.org/r/[e-mail]

Fixes: 4bc4b131d44c ("rv: Add rv tool")

Signed-off-by: Colin Ian King <[e-mail]>
Acked-by: Daniel Bristot de Oliveira <[e-mail]>
Signed-off-by: Steven Rostedt (Google) <[e-mail]>

tools/verification/rv/src/rv.c

···
 static void rv_mon(int argc, char **argv)
 {
 	char *monitor_name;
-	int i, run;
+	int i, run = 0;
 
 	static const char *const usage[] = {
 		"",