Re: [PATCH] leds: lp50xx: add missing fwnode_handle_put in error handling case

From: Qinglang Miao
Date: Thu Nov 19 2020 - 02:06:04 EST




在 2020/11/11 21:27, Dan Murphy 写道:
Hello

On 11/10/20 9:21 PM, Qinglang Miao wrote:
Fix to goto child_out to do fwnode_handle_put(child)
from the error handling case rather than simply return,
as done elsewhere in this function.

Fixes: 242b81170fb8 ("leds: lp50xx: Add the LP50XX family of the RGB LED driver")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Qinglang Miao <miaoqinglang@xxxxxxxxxx>
---
  drivers/leds/leds-lp50xx.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/leds/leds-lp50xx.c b/drivers/leds/leds-lp50xx.c
index 5fb4f24aeb2e..49a997b2c781 100644
--- a/drivers/leds/leds-lp50xx.c
+++ b/drivers/leds/leds-lp50xx.c
@@ -488,7 +488,7 @@ static int lp50xx_probe_dt(struct lp50xx *priv)
          mc_led_info = devm_kcalloc(priv->dev, LP50XX_LEDS_PER_MODULE,
                         sizeof(*mc_led_info), GFP_KERNEL);
          if (!mc_led_info)
-            return -ENOMEM;
+            goto child_out;

Thanks for the patch.

Need to set ret = -ENOMEM; then do child_out so the error is reported properly

Dan
.
Hi Dan,

I've sent v2 on this fix, setting ret as well.

Thanks!