Messages in this thread Patch in this message | | | From | Wolfram Sang <> | Subject | [RFC PATCH 1/7] i2c: add sanity check for parameter of i2c_verify_client() | Date | Thu, 20 Feb 2020 18:23:57 +0100 |
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We export this function, so we should check the paramter to make it NULL-compatible.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> --- drivers/i2c/i2c-core-base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c index cefad0881942..8f46d1bb8c62 100644 --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -517,7 +517,7 @@ EXPORT_SYMBOL_GPL(i2c_client_type); */ struct i2c_client *i2c_verify_client(struct device *dev) { - return (dev->type == &i2c_client_type) + return (dev && dev->type == &i2c_client_type) ? to_i2c_client(dev) : NULL; } -- 2.20.1
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