[SCSI] megaraid_sas: use unsigned long for sense_buff ptr

MegaRAID utilities expect sense_buff to be of type unsigned long.
Signed-off-by: Bo Yang <bo.yang@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/megaraid/megaraid_sas.c

@@ -2825,6 +2825,7 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
 	void *sense = NULL;
 	dma_addr_t sense_handle;
 	u32 *sense_ptr;
+	unsigned long *sense_buff;
 
 	memset(kbuff_arr, 0, sizeof(kbuff_arr));
 
@@ -2929,14 +2930,16 @@ megasas_mgmt_fw_ioctl(struct megasas_instance *instance,
 	 */
 	if (ioc->sense_len) {
 		/*
-		 * sense_ptr points to the location that has the user
+		 * sense_buff points to the location that has the user
 		 * sense buffer address
 		 */
-		sense_ptr = (u32 *) ((unsigned long)ioc->frame.raw +
+		sense_buff = (unsigned long *) ((unsigned long)ioc->frame.raw +
 								ioc->sense_off);
 
-		if (copy_to_user((void __user *)((unsigned long)(*sense_ptr)),
+		if (copy_to_user((void __user *)(unsigned long)(*sense_buff),
 				sense, ioc->sense_len)) {
+			printk(KERN_ERR "megasas: Failed to copy out to user "
+					"sense data\n");
 			error = -EFAULT;
 			goto out;
 		}