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Commit fa0195d8 authored by Wolfram Sang's avatar Wolfram Sang Committed by Greg Kroah-Hartman
Browse files

i2c: slave: improve sanity check when registering 



[ Upstream commit 1b1be3bf27b62f5abcf85c6f3214bdb9c7526685 ]

Add check for ERR_PTR and simplify code while here.

Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: default avatarAlain Volmat <alain.volmat@st.com>
Signed-off-by: default avatarWolfram Sang <wsa@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 4bba72b7

drivers/i2c/i2c-core-slave.c

+1 −3
Original line number Diff line number Diff line
@@ -18,10 +18,8 @@ int i2c_slave_register(struct i2c_client *client, i2c_slave_cb_t slave_cb) 
{

	int ret;



	if (!client || !slave_cb) {

		WARN(1, "insufficient data\n");

	if (WARN(IS_ERR_OR_NULL(client) || !slave_cb, "insufficient data\n"))

		return -EINVAL;

	}



	if (!(client->flags & I2C_CLIENT_SLAVE))

		dev_warn(&client->dev, "%s: client slave flag not set. You might see address collisions\n",