We get a reference to the fwnode handle which we pass to
gpio_shared_make_ref. In case it fails we do not put the reference.
Fix by putting the reference in the failure case
Fixes: 49416483a953 ("gpio: shared: allow sharing a reset-gpios pin between reset-gpio and gpiolib")
Cc: stable@vger.kernel.org
Signed-off-by: Michail Tatas <michail.tatas@gmail.com>
---
Changes in v2:
- Added Cc and Fixes Tags based on the review from Bart
Revisions:
- v1: https://lore.kernel.org/all/anUA90ZcyYp9ka3E@michalis-linux/
drivers/gpio/gpiolib-shared.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpio/gpiolib-shared.c b/drivers/gpio/gpiolib-shared.c
index 495bd3d0ddf0..5f9623e40b0f 100644
--- a/drivers/gpio/gpiolib-shared.c
+++ b/drivers/gpio/gpiolib-shared.c
@@ -261,10 +261,13 @@ static int gpio_shared_of_traverse(struct device_node *curr)
con_id[con_id_len - suffix_len] = '\0';
}
- ref = gpio_shared_make_ref(fwnode_handle_get(of_fwnode_handle(curr)),
- con_id, args.args[1]);
- if (!ref)
+ struct fwnode_handle *curr_fwnode =
+ fwnode_handle_get(of_fwnode_handle(curr));
+ ref = gpio_shared_make_ref(curr_fwnode, con_id, args.args[1]);
+ if (!ref) {
+ fwnode_handle_put(curr_fwnode);
return -ENOMEM;
+ }
if (!list_empty(&entry->refs))
pr_debug("GPIO %u at %s is shared by multiple firmware nodes\n",
--
2.43.0