From 0a66ac17abf2bd03e30fbe20b1847258b960b683 Mon Sep 17 00:00:00 2001 From: Johannes Thumshirn Date: Fri, 22 May 2015 11:15:02 +0200 Subject: [PATCH] mvsas: always iounmap resources 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 Reviewed-by: Hannes Reinecke Signed-off-by: James Bottomley --- drivers/scsi/mvsas/mv_init.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index d40d734aa53a..f466a6aa8830 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -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) -- 2.20.1