ce02d82c4e
commitae7b8eda27upstream. There is a potential NULL pointer dereference in case devm_kzalloc() fails and returns NULL. Fix this by adding a NULL check on *lookup* This bug was detected with the help of Coccinelle. Fixes:b2e6355559("i2c: gpio: Convert to use descriptors") Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>