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Subject[PATCH 2/4] pinctrl: kirkwood: Prevent NULL dereference if of_match_device returns NULL
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Date
of_match_device() may return NULL.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
---
drivers/pinctrl/mvebu/pinctrl-kirkwood.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/mvebu/pinctrl-kirkwood.c b/drivers/pinctrl/mvebu/pinctrl-kirkwood.c
index 9a74ef6..fe885ca 100644
--- a/drivers/pinctrl/mvebu/pinctrl-kirkwood.c
+++ b/drivers/pinctrl/mvebu/pinctrl-kirkwood.c
@@ -444,8 +444,11 @@ static struct of_device_id kirkwood_pinctrl_of_match[] __devinitdata = {

static int __devinit kirkwood_pinctrl_probe(struct platform_device *pdev)
{
- const struct of_device_id *match =
- of_match_device(kirkwood_pinctrl_of_match, &pdev->dev);
+ const struct of_device_id *match;
+
+ match = of_match_device(kirkwood_pinctrl_of_match, &pdev->dev);
+ if (!match)
+ return -ENODEV;
pdev->dev.platform_data = match->data;
return mvebu_pinctrl_probe(pdev);
}
--
1.7.9.5




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