If platdata is not correct setup before registering the device
a null ptr derefence can occur.
Signed-off-by: Phil Reid <preid@xxxxxxxxxxxxxxxxx>
---
drivers/i2c/i2c-smbus.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/i2c/i2c-smbus.c b/drivers/i2c/i2c-smbus.c
index b272493..df0e2fa 100644
--- a/drivers/i2c/i2c-smbus.c
+++ b/drivers/i2c/i2c-smbus.c
@@ -151,6 +151,11 @@ static int smbalert_probe(struct i2c_client *ara,
struct i2c_adapter *adapter = ara->adapter;
int res;
+ if (!setup) {
+ dev_err(&adapter->dev, "setup not defined\n");
+ return -ENODATA;
+ }
+
alert = devm_kzalloc(&ara->dev, sizeof(struct i2c_smbus_alert),
GFP_KERNEL);
if (!alert)
--
1.8.3.1
--
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