Thread (62 messages) 62 messages, 4 authors, 2021-05-29
STALE1846d

[PATCH v1 23/28] leds: lp50xx: Put fwnode in error case during ->probe()

From: Andy Shevchenko <hidden>
Date: 2021-05-10 09:53:28
Also in: lkml
Subsystem: led subsystem, the rest · Maintainers: Lee Jones, Pavel Machek, Linus Torvalds

fwnode_for_each_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.

OTOH, the successful iteration will drop reference count under the hood, no need
to do it twice.

Fixes: 242b81170fb8 ("leds: lp50xx: Add the LP50XX family of the RGB LED driver")
Cc: Dan Murphy <redacted>
Signed-off-by: Andy Shevchenko <redacted>
---
 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 06230614fdc5..401df1e2e05d 100644
--- a/drivers/leds/leds-lp50xx.c
+++ b/drivers/leds/leds-lp50xx.c
@@ -490,6 +490,7 @@ static int lp50xx_probe_dt(struct lp50xx *priv)
 			ret = fwnode_property_read_u32(led_node, "color",
 						       &color_id);
 			if (ret) {
+				fwnode_handle_put(led_node);
 				dev_err(priv->dev, "Cannot read color\n");
 				goto child_out;
 			}
@@ -512,7 +513,6 @@ static int lp50xx_probe_dt(struct lp50xx *priv)
 			goto child_out;
 		}
 		i++;
-		fwnode_handle_put(child);
 	}
 
 	return 0;
-- 
2.31.1
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help