Staging: i4l: pcbit: edss1: Use !x instead of x == NULL.

Use !x instead of x == NULL.

Signed-off-by: Sandhya Bankar <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/i4l/pcbit/edss1.c

···
 
 	dev = chan2dev(chan);
 
-	if (dev == NULL) {
+	if (!dev) {
 		printk(KERN_WARNING "pcbit: timer for unknown device\n");
 		return;
 	}