From 51f9039ffd751dee54fe26609df645bfd128b1d0 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Sun, 21 Aug 2016 10:28:25 +0200 Subject: [PATCH] scsi: megaraid_sas: Fix the search of first memory bar The 2nd parameter of 'find_first_bit' is the number of bits to search. In this case, we are passing 'sizeof(unsigned long)' which is likely to be 4. It is likely that the number of bits in a long was expected here, so use BITS_PER_LONG instead. Signed-off-by: Christophe JAILLET Acked-by: Sumit Saxena Signed-off-by: Martin K. Petersen --- drivers/scsi/megaraid/megaraid_sas_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index c87e5ef96ada..7edc9e21c536 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -5036,7 +5036,7 @@ static int megasas_init_fw(struct megasas_instance *instance) /* 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"); -- 2.39.5