USB: mon_stat.c: move assignment out of if () block

We should not be doing assignments within an if () block
so fix up the code to not do this.

change was created using Coccinelle.
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: NFelipe Balbi <balbi@ti.com>

drivers/usb/mon/mon_stat.c

@@ -28,7 +28,8 @@ static int mon_stat_open(struct inode *inode, struct file *file)
 	struct mon_bus *mbus;
 	struct snap *sp;
 
-	if ((sp = kmalloc(sizeof(struct snap), GFP_KERNEL)) == NULL)
+	sp = kmalloc(sizeof(struct snap), GFP_KERNEL);
+	if (sp == NULL)
 		return -ENOMEM;
 
 	mbus = inode->i_private;