[PATCH] regulator mc13783: bail out without platform data
Sascha Hauer
s.hauer at pengutronix.de
Wed Feb 29 03:01:40 EST 2012
the platform data pointer is used without checking it. Bail out
in the driver instead of crashing the kernel.
Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
drivers/regulator/mc13783-regulator.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c
index 8e9b90a..6c0face 100644
--- a/drivers/regulator/mc13783-regulator.c
+++ b/drivers/regulator/mc13783-regulator.c
@@ -344,6 +344,9 @@ static int __devinit mc13783_regulator_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "%s id %d\n", __func__, pdev->id);
+ if (!pdata)
+ return -EINVAL;
+
priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
pdata->num_regulators * sizeof(priv->regulators[0]),
GFP_KERNEL);
--
1.7.9.1
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