5.4-stable review patch. If anyone has any objections, please let me know.
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From: Dan Carpenter dan.carpenter@linaro.org
[ Upstream commit 672a37ba8af1f2ebcedeb94aea2cdd047f805f30 ]
Check if devm_i2c_new_dummy_device() fails.
Fixes: 2e1f2d9a9bdb ("serial: max310x: implement I2C support") Signed-off-by: Dan Carpenter dan.carpenter@linaro.org Link: https://lore.kernel.org/r/aJTMPZiKqeXSE-KM@stanley.mountain Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/tty/serial/max310x.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c index 363b68555fe62..4ef2762347f62 100644 --- a/drivers/tty/serial/max310x.c +++ b/drivers/tty/serial/max310x.c @@ -1660,6 +1660,8 @@ static int max310x_i2c_probe(struct i2c_client *client) port_client = devm_i2c_new_dummy_device(&client->dev, client->adapter, port_addr); + if (IS_ERR(port_client)) + return PTR_ERR(port_client);
regmaps[i] = devm_regmap_init_i2c(port_client, ®cfg_i2c); }