diff --git a/drivers/usb/media/usbvideo.c b/drivers/usb/media/usbvideo.c
index af0585906b2efe7684ec6f464f56b885f6874ea3..4bd113325ef9b1441d7b244a7cb2ea8b106a69e1 100644
--- a/drivers/usb/media/usbvideo.c
+++ b/drivers/usb/media/usbvideo.c
@@ -725,7 +725,7 @@ int usbvideo_register(
 		/* Allocate user_data separately because of kmalloc's limits */
 		if (num_extra > 0) {
 			up->user_size = num_cams * num_extra;
-			up->user_data = (char *) kmalloc(up->user_size, GFP_KERNEL);
+			up->user_data = kmalloc(up->user_size, GFP_KERNEL);
 			if (up->user_data == NULL) {
 				err("%s: Failed to allocate user_data (%d. bytes)",
 				    __FUNCTION__, up->user_size);
diff --git a/drivers/usb/media/w9968cf.c b/drivers/usb/media/w9968cf.c
index 8d6a1ff6595fea54fdb95da37a27f8b082ddf73e..04d69339c05442fe16d3af4d810271a3def209a7 100644
--- a/drivers/usb/media/w9968cf.c
+++ b/drivers/usb/media/w9968cf.c
@@ -3554,7 +3554,7 @@ w9968cf_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
 
 
 	/* Allocate 2 bytes of memory for camera control USB transfers */
-	if (!(cam->control_buffer = (u16*)kmalloc(2, GFP_KERNEL))) {
+	if (!(cam->control_buffer = kmalloc(2, GFP_KERNEL))) {
 		DBG(1,"Couldn't allocate memory for camera control transfers")
 		err = -ENOMEM;
 		goto fail;
@@ -3562,7 +3562,7 @@ w9968cf_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
 	memset(cam->control_buffer, 0, 2);
 
 	/* Allocate 8 bytes of memory for USB data transfers to the FSB */
-	if (!(cam->data_buffer = (u16*)kmalloc(8, GFP_KERNEL))) {
+	if (!(cam->data_buffer = kmalloc(8, GFP_KERNEL))) {
 		DBG(1, "Couldn't allocate memory for data "
 		       "transfers to the FSB")
 		err = -ENOMEM;
diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c
index fad387f2189186fd8621391527fc2e8e85661dab..449b2501acf365ac0b105c0bfd4d15b0fa4bf8d5 100644
--- a/drivers/usb/misc/auerswald.c
+++ b/drivers/usb/misc/auerswald.c
@@ -767,7 +767,7 @@ static int auerbuf_setup (pauerbufctl_t bcp, unsigned int numElements, unsigned
 	        memset (bep, 0, sizeof (auerbuf_t));
                 bep->list = bcp;
                 INIT_LIST_HEAD (&bep->buff_list);
-                bep->bufp = (char *) kmalloc (bufsize, GFP_KERNEL);
+                bep->bufp = kmalloc (bufsize, GFP_KERNEL);
                 if (!bep->bufp)
 			goto bl_fail;
                 bep->dr = (struct usb_ctrlrequest *) kmalloc (sizeof (struct usb_ctrlrequest), GFP_KERNEL);
@@ -1123,7 +1123,7 @@ static int auerswald_int_open (pauerswald_t cp)
                 }
         }
         if (!cp->intbufp) {
-                cp->intbufp = (char *) kmalloc (irqsize, GFP_KERNEL);
+                cp->intbufp = kmalloc (irqsize, GFP_KERNEL);
                 if (!cp->intbufp) {
                         ret = -ENOMEM;
                         goto intoend;
diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c
index b9d66074b80c9cfae5433f1768e6181c839dc6db..384fa37698050bea738eaa3a37f4cf8428583677 100644
--- a/drivers/usb/misc/rio500.c
+++ b/drivers/usb/misc/rio500.c
@@ -465,14 +465,14 @@ static int probe_rio(struct usb_interface *intf,
 
 	rio->rio_dev = dev;
 
-	if (!(rio->obuf = (char *) kmalloc(OBUF_SIZE, GFP_KERNEL))) {
+	if (!(rio->obuf = kmalloc(OBUF_SIZE, GFP_KERNEL))) {
 		err("probe_rio: Not enough memory for the output buffer");
 		usb_deregister_dev(intf, &usb_rio_class);
 		return -ENOMEM;
 	}
 	dbg("probe_rio: obuf address:%p", rio->obuf);
 
-	if (!(rio->ibuf = (char *) kmalloc(IBUF_SIZE, GFP_KERNEL))) {
+	if (!(rio->ibuf = kmalloc(IBUF_SIZE, GFP_KERNEL))) {
 		err("probe_rio: Not enough memory for the input buffer");
 		usb_deregister_dev(intf, &usb_rio_class);
 		kfree(rio->obuf);