[PATCH -next v2] I2C: Fix return value check for devm_pinctrl_get()
Ruan Jinjie
ruanjinjie at huawei.com
Wed Aug 16 19:20:17 PDT 2023
The devm_pinctrl_get() function returns error pointers and never
returns NULL. Update the checks accordingly.
Fixes: 543aa2c4da8b ("i2c: at91: Move to generic GPIO bus recovery")
Fixes: fd8961c5ba9e ("i2c: imx: make bus recovery through pinctrl optional")
Signed-off-by: Ruan Jinjie <ruanjinjie at huawei.com>
---
v2:
- Remove NULL check instead of using IS_ERR_OR_NULL() to avoid leaving them behind.
- Update the commit title and message.
---
drivers/i2c/busses/i2c-at91-master.c | 2 +-
drivers/i2c/busses/i2c-imx.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/i2c/busses/i2c-at91-master.c b/drivers/i2c/busses/i2c-at91-master.c
index 94cff1cd527e..2bf1df5ef473 100644
--- a/drivers/i2c/busses/i2c-at91-master.c
+++ b/drivers/i2c/busses/i2c-at91-master.c
@@ -831,7 +831,7 @@ static int at91_init_twi_recovery_gpio(struct platform_device *pdev,
struct i2c_bus_recovery_info *rinfo = &dev->rinfo;
rinfo->pinctrl = devm_pinctrl_get(&pdev->dev);
- if (!rinfo->pinctrl || IS_ERR(rinfo->pinctrl)) {
+ if (IS_ERR(rinfo->pinctrl)) {
dev_info(dev->dev, "can't get pinctrl, bus recovery not supported\n");
return PTR_ERR(rinfo->pinctrl);
}
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 10e89586ca72..05d55893f04e 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -1388,7 +1388,7 @@ static int i2c_imx_init_recovery_info(struct imx_i2c_struct *i2c_imx,
struct i2c_bus_recovery_info *rinfo = &i2c_imx->rinfo;
i2c_imx->pinctrl = devm_pinctrl_get(&pdev->dev);
- if (!i2c_imx->pinctrl || IS_ERR(i2c_imx->pinctrl)) {
+ if (IS_ERR(i2c_imx->pinctrl)) {
dev_info(&pdev->dev, "can't get pinctrl, bus recovery not supported\n");
return PTR_ERR(i2c_imx->pinctrl);
}
--
2.34.1
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