diff options
| author | Felix Gu <ustc.gu@gmail.com> | 2026-01-30 00:21:19 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-03-13 17:20:16 +0100 |
| commit | 871630255ecd2d9b64ad1d75a7dfc0567d7d9989 (patch) | |
| tree | fcbbc5aec6ba46a7fc6237726c412d6b98636b37 /drivers/gpu | |
| parent | 36cb28b6d303a81e6ed4536017090e85e0143e42 (diff) | |
drm/logicvc: Fix device node reference leak in logicvc_drm_config_parse()
[ Upstream commit fef0e649f8b42bdffe4a916dd46e1b1e9ad2f207 ]
The logicvc_drm_config_parse() function calls of_get_child_by_name() to
find the "layers" node but fails to release the reference, leading to a
device node reference leak.
Fix this by using the __free(device_node) cleanup attribute to automatic
release the reference when the variable goes out of scope.
Fixes: efeeaefe9be5 ("drm: Add support for the LogiCVC display controller")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Kory Maincent <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/20260130-logicvc_drm-v1-1-04366463750c@gmail.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/logicvc/logicvc_drm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/logicvc/logicvc_drm.c b/drivers/gpu/drm/logicvc/logicvc_drm.c index 01a37e28c080..6d88f8645988 100644 --- a/drivers/gpu/drm/logicvc/logicvc_drm.c +++ b/drivers/gpu/drm/logicvc/logicvc_drm.c @@ -90,7 +90,6 @@ static int logicvc_drm_config_parse(struct logicvc_drm *logicvc) struct device *dev = drm_dev->dev; struct device_node *of_node = dev->of_node; struct logicvc_drm_config *config = &logicvc->config; - struct device_node *layers_node; int ret; logicvc_of_property_parse_bool(of_node, LOGICVC_OF_PROPERTY_DITHERING, @@ -126,7 +125,8 @@ static int logicvc_drm_config_parse(struct logicvc_drm *logicvc) if (ret) return ret; - layers_node = of_get_child_by_name(of_node, "layers"); + struct device_node *layers_node __free(device_node) = + of_get_child_by_name(of_node, "layers"); if (!layers_node) { drm_err(drm_dev, "Missing non-optional layers node\n"); return -EINVAL; |