diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 986abde076831921bf33f075a54fa8500630dd58..ed6d1d5031f152d90694ab612145b96ca8e9e22a 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1082,7 +1082,8 @@ static int proc_bulk(struct usb_dev_state *ps, void __user *arg)
 	ret = usbfs_increase_memory_usage(len1 + sizeof(struct urb));
 	if (ret)
 		return ret;
-	if (!(tbuf = kmalloc(len1, GFP_KERNEL))) {
+	tbuf = kmalloc(len1, GFP_KERNEL);
+	if (!tbuf) {
 		ret = -ENOMEM;
 		goto done;
 	}
@@ -1224,7 +1225,8 @@ static int proc_setintf(struct usb_dev_state *ps, void __user *arg)
 
 	if (copy_from_user(&setintf, arg, sizeof(setintf)))
 		return -EFAULT;
-	if ((ret = checkintf(ps, setintf.interface)))
+	ret = checkintf(ps, setintf.interface);
+	if (ret)
 		return ret;
 
 	destroy_async_on_interface(ps, setintf.interface);
@@ -1393,7 +1395,8 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb
 		number_of_packets = uurb->number_of_packets;
 		isofrmlen = sizeof(struct usbdevfs_iso_packet_desc) *
 				   number_of_packets;
-		if (!(isopkt = kmalloc(isofrmlen, GFP_KERNEL)))
+		isopkt = kmalloc(isofrmlen, GFP_KERNEL);
+		if (!isopkt)
 			return -ENOMEM;
 		if (copy_from_user(isopkt, iso_frame_desc, isofrmlen)) {
 			ret = -EFAULT;
@@ -1904,7 +1907,8 @@ static int proc_releaseinterface(struct usb_dev_state *ps, void __user *arg)
 
 	if (get_user(ifnum, (unsigned int __user *)arg))
 		return -EFAULT;
-	if ((ret = releaseintf(ps, ifnum)) < 0)
+	ret = releaseintf(ps, ifnum);
+	if (ret < 0)
 		return ret;
 	destroy_async_on_interface (ps, ifnum);
 	return 0;
@@ -1919,7 +1923,8 @@ static int proc_ioctl(struct usb_dev_state *ps, struct usbdevfs_ioctl *ctl)
 	struct usb_driver       *driver = NULL;
 
 	/* alloc buffer */
-	if ((size = _IOC_SIZE(ctl->ioctl_code)) > 0) {
+	size = _IOC_SIZE(ctl->ioctl_code);
+	if (size > 0) {
 		buf = kmalloc(size, GFP_KERNEL);
 		if (buf == NULL)
 			return -ENOMEM;