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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 <christophe.jaillet@wanadoo.fr>
Acked-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Christophe JAILLET 2016-08-21 10:28:25 +02:00 committed by Martin K. Petersen
parent f8630bd7e2
commit 51f9039ffd
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/megaraid/megaraid_sas_base.c
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@ -5036,7 +5036,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
/* Find first memory bar */ /* Find first memory bar */
bar_list = pci_select_bars(instance->pdev, IORESOURCE_MEM); 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, if (pci_request_selected_regions(instance->pdev, instance->bar,
"megasas: LSI")) { "megasas: LSI")) {
dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n"); dev_printk(KERN_DEBUG, &instance->pdev->dev, "IO memory region busy!\n");