rv: remove redundant initialization of pointer ptr

The pointer ptr is being initialized with a value that is never read,
it is being updated later on a call to strim. Remove the extraneous
initialization.

Link: https://lkml.kernel.org/r/[email protected]

Cc: Daniel Bristot de Oliveira <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Signed-off-by: Colin Ian King <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>

Author: ColinIanKing

kernel/trace/rv/rv.c

@@ -516,7 +516,7 @@ static ssize_t enabled_monitors_write(struct file *filp, const char __user *user
 	struct rv_monitor_def *mdef;
 	int retval = -EINVAL;
 	bool enable = true;
-	char *ptr = buff;
+	char *ptr;
 	int len;
 
 	if (count < 1 || count > MAX_RV_MONITOR_NAME_SIZE + 1)