[PATCH 4.19 145/346] video: fbdev: atmel_lcdfb: fix return error code in atmel_lcdfb_of_init()

Greg Kroah-Hartman
2020-12-28T13:26:58Z

From: Yang Yingliang <yangyingliang@huawei.com>

[ Upstream commit ba236455ee750270f33998df57f982433cea4d8e ]

If devm_kzalloc() failed after the first time, atmel_lcdfb_of_init()
can't return -ENOMEM, fix this by putting the error code in loop.

Fixes: b985172b328a ("video: atmel_lcdfb: add device tree suport")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201117061350.3453742-1-yangyingliang@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/video/fbdev/atmel_lcdfb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/atmel_lcdfb.c b/drivers/video/fbdev/atmel_lcdfb.c
index 4ed55e6bbb840..6d01ae3984c73 100644
--- a/drivers/video/fbdev/atmel_lcdfb.c
+++ b/drivers/video/fbdev/atmel_lcdfb.c
@@ -1071,8 +1071,8 @@ static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
}

INIT_LIST_HEAD(&pdata->pwr_gpios);
- ret = -ENOMEM;
for (i = 0; i < gpiod_count(dev, "atmel,power-control"); i++) {
+ ret = -ENOMEM;
gpiod = devm_gpiod_get_index(dev, "atmel,power-control",
i, GPIOD_ASIS);
if (IS_ERR(gpiod))
--
2.27.0