* [PATCH] drivers/base: bail out if request_iomem_region fails
@ 2012-06-27 13:56 Sascha Hauer
0 siblings, 0 replies; only message in thread
From: Sascha Hauer @ 2012-06-27 13:56 UTC (permalink / raw)
To: barebox
When request_iomem_region fails we have to bail out instead of
dereferencing res->start.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
drivers/base/driver.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index 3be4b99..81cedca 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -262,6 +262,8 @@ void __iomem *dev_request_mem_region(struct device_d *dev, int num)
return NULL;
res = request_iomem_region(dev_name(dev), res->start, res->size);
+ if (!res)
+ return NULL;
return (void __force __iomem *)res->start;
}
--
1.7.10
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