[PATCH AUTOSEL 5.7 148/388] gpio: mlxbf2: fix return value check in mlxbf2_gpio_get_lock_res()

Sasha Levin
2020-06-18T01:12:02Z

From: Wei Yongjun <weiyongjun1@huawei.com>

[ Upstream commit 66d8ad67aab3bc6f55e7de81565cd0d4875bd851 ]

In case of error, the function devm_ioremap() returns NULL pointer not
ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20200427110829.154785-1-weiyongjun1@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpio/gpio-mlxbf2.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-mlxbf2.c b/drivers/gpio/gpio-mlxbf2.c
index da570e63589d..cc0dd8593a4b 100644
--- a/drivers/gpio/gpio-mlxbf2.c
+++ b/drivers/gpio/gpio-mlxbf2.c
@@ -110,8 +110,8 @@ static int mlxbf2_gpio_get_lock_res(struct platform_device *pdev)
}

yu_arm_gpio_lock_param.io = devm_ioremap(dev, res->start, size);
- if (IS_ERR(yu_arm_gpio_lock_param.io))
- ret = PTR_ERR(yu_arm_gpio_lock_param.io);
+ if (!yu_arm_gpio_lock_param.io)
+ ret = -ENOMEM;

exit:
mutex_unlock(yu_arm_gpio_lock_param.lock);
--
2.25.1