From 066bfc589e1af9d7df5873925d4994f505912228 Mon Sep 17 00:00:00 2001 From: Pierre-Yves MORDRET Date: Wed, 21 Mar 2018 17:48:40 +0100 Subject: [PATCH] i2c: i2c-stm32f7: fix no check on returned setup Before assigning returned setup structure check if not null Fixes: 5dfe8280690b58b07ba1 ("i2c: stm32f7: fix setup structure") Signed-off-by: Pierre-Yves MORDRET Acked-by: Alexandre TORGUE Signed-off-by: Wolfram Sang Cc: stable@kernel.org --- drivers/i2c/busses/i2c-stm32f7.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c index b445b3bb0bb11..f273e28c39db2 100644 --- a/drivers/i2c/busses/i2c-stm32f7.c +++ b/drivers/i2c/busses/i2c-stm32f7.c @@ -888,6 +888,11 @@ static int stm32f7_i2c_probe(struct platform_device *pdev) } setup = of_device_get_match_data(&pdev->dev); + if (!setup) { + dev_err(&pdev->dev, "Can't get device data\n"); + ret = -ENODEV; + goto clk_free; + } i2c_dev->setup = *setup; ret = device_property_read_u32(i2c_dev->dev, "i2c-scl-rising-time-ns", -- 2.39.5