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mvsas: always iounmap resources

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In case pci_resource_start() or pci_resource_len() reutrn 0, mvsas_ioremap
returns without doing an iounmap() of mvi->regs_ex.

Found by the cocinelle tool.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
This commit is contained in:
Johannes Thumshirn 2015-05-22 11:15:02 +02:00 committed by James Bottomley
parent a30c2a3bf8
commit 0a66ac17ab
1 changed files with 4 additions and 1 deletions
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5
drivers/scsi/mvsas/mv_init.c
View file

@ -338,8 +338,11 @@ int mvs_ioremap(struct mvs_info *mvi, int bar, int bar_ex)
res_start = pci_resource_start(pdev, bar);
res_len = pci_resource_len(pdev, bar);
if (!res_start || !res_len)
if (!res_start || !res_len) {
iounmap(mvi->regs_ex);
mvi->regs_ex = NULL;
goto err_out;
}
res_flag = pci_resource_flags(pdev, bar);
if (res_flag & IORESOURCE_CACHEABLE)