linux-kernel - [PATCH 1/3] i2o: Fix DMA mapping leak in failure path of i2o_cfg

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Date:	Thu, 06 Nov 2014 03:25:43 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/3] i2o: Fix DMA mapping leak in failure path of
 i2o_cfg_passthru32()

If i2o_dma_alloc() fails then we don't free any DMA mappings already
allocated.  i2o_cfg_passthru() does not have this bug.

Compile-tested only.

Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/message/i2o/i2o_config.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c
index 04bd3b6..274235d 100644
--- a/drivers/message/i2o/i2o_config.c
+++ b/drivers/message/i2o/i2o_config.c
@@ -630,7 +630,7 @@ static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
 				       "%s:Bad SG element %d - not simple (%x)\n",
 				       c->name, i, sg[i].flag_count);
 				rcode = -EINVAL;
-				goto cleanup;
+				goto sg_list_cleanup;
 			}
 			sg_size = sg[i].flag_count & 0xffffff;
 			p = &(sg_list[sg_index]);


-- 
Ben Hutchings
Beware of programmers who carry screwdrivers. - Leonard Brandwein

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