linux-kernel - [PATCH 2/3] dmaengine: intel_mid

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Date:	Fri, 16 Dec 2011 11:01:39 +0200
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Vinod Koul <vinod.koul@...el.com>
Cc:	Dan Williams <dan.j.williams@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Adrian Hunter <adrian.hunter@...el.com>
Subject: [PATCH 2/3] dmaengine: intel_mid_dma: error path fix

Add missing iounmap in error path.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 drivers/dma/intel_mid_dma.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c
index d4b9616..bbcd470 100644
--- a/drivers/dma/intel_mid_dma.c
+++ b/drivers/dma/intel_mid_dma.c
@@ -1104,7 +1104,8 @@ static int mid_setup_dma(struct pci_dev *pdev)
 					LNW_PERIPHRAL_MASK_SIZE);
 		if (dma->mask_reg == NULL) {
 			pr_err("ERR_MDMA:Can't map periphral intr space !!\n");
-			return -ENOMEM;
+			err = -ENOMEM;
+			goto err_ioremap;
 		}
 	} else
 		dma->mask_reg = NULL;
@@ -1201,6 +1202,9 @@ static int mid_setup_dma(struct pci_dev *pdev)
 err_engine:
 	free_irq(pdev->irq, dma);
 err_irq:
+	if (dma->mask_reg)
+		iounmap(dma->mask_reg);
+err_ioremap:
 	pci_pool_destroy(dma->dma_pool);
 err_dma_pool:
 	pr_err("ERR_MDMA:setup_dma failed: %d\n", err);
-- 
1.7.6.4

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