From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> stable inclusion from stable-v5.10.146 commit 2f58c47c36d3f13c2c7368f9fd12636a22e1101a category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6D0VX Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit 085aacaa73163f4b8a89dec24ecb32cfacd34017 ] pm_runtime_get_sync() returning 1 also means the device is powered. So resetting the chip registers in .remove() is possible and should be done. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: d98bdd3a5b50 ("i2c: imx: Make sure to unregister adapter on remove()") Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com> Reviewed-by: Zheng Zengkai <zhengzengkai@huawei.com> --- drivers/i2c/busses/i2c-imx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index d3719df1c40d..be4ad516293b 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -1289,7 +1289,7 @@ static int i2c_imx_remove(struct platform_device *pdev) if (i2c_imx->dma) i2c_imx_dma_free(i2c_imx); - if (ret == 0) { + if (ret >= 0) { /* setup chip registers to defaults */ imx_i2c_write_reg(0, i2c_imx, IMX_I2C_IADR); imx_i2c_write_reg(0, i2c_imx, IMX_I2C_IFDR); -- 2.25.1