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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2012-06-27 15:15:30 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2012-06-27 18:31:34 +0200 |
| commit | a6e358b2f5b219fda18a7bc9348cb969043c19d5 (patch) | |
| tree | b8d758d75aa77c1967fcf003f90841797e39bd1e | |
| parent | fd4c51aa28acfd61e1802cb5ab1197d808e7da82 (diff) | |
| download | barebox-a6e358b2f5b219fda18a7bc9348cb969043c19d5.tar.gz barebox-a6e358b2f5b219fda18a7bc9348cb969043c19d5.tar.xz | |
drivers/base: bail out if request_iomem_region fails
When request_iomem_region fails we have to bail out instead of
dereferencing res->start.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | drivers/base/driver.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/base/driver.c b/drivers/base/driver.c index 3be4b99030..81cedca1db 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; } |