usb/host/fotg210: change kmalloc by kmalloc_array

This patch replaces:

kmalloc(DBG_SCHED_LIMIT * sizeof(*seen), GFP_ATOMIC)

by:

kmalloc_array(DBG_SCHED_LIMIT, sizeof(*seen), GFP_ATOMIC)

as kmalloc_array() should be used for allocating arrays.
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/fotg210-hcd.c

@@ -500,7 +500,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
 	unsigned i;
 	__hc32 tag;
 
-	seen = kmalloc(DBG_SCHED_LIMIT * sizeof(*seen), GFP_ATOMIC);
+	seen = kmalloc_array(DBG_SCHED_LIMIT, sizeof(*seen), GFP_ATOMIC);
 	if (!seen)
 		return 0;