/* Find first memory bar */
bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM);
- instance->bar = find_first_bit(&bar_list, sizeof(unsigned long));
+ instance->bar = find_first_bit(&bar_list, BITS_PER_LONG);
if (pci_request_selected_regions(instance->pdev, instance->bar,
"megasas: LSI")) {
dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");
unsigned long flags;
u32 wait_time = MEGASAS_RESET_WAIT_TIME;
- ioc = kmalloc(sizeof(*ioc), GFP_KERNEL);
- if (!ioc)
- return -ENOMEM;
-
- if (copy_from_user(ioc, user_ioc, sizeof(*ioc))) {
- error = -EFAULT;
- goto out_kfree_ioc;
- }
+ ioc = memdup_user(user_ioc, sizeof(*ioc));
+ if (IS_ERR(ioc))
+ return PTR_ERR(ioc);
instance = megasas_lookup_instance(ioc->host_no);
if (!instance) {