[PATCH 1/3] drm: property: One function call less in drm_property_create() after error detection

From: Markus Elfring
Date: Tue Dec 26 2023 - 04:39:00 EST


From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 26 Dec 2023 08:44:37 +0100

The kfree() function was called in one case by the
drm_property_create() function during error handling
even if the passed data structure member contained a null pointer.
This issue was detected by using the Coccinelle software.

Thus use another label.

Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_property.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_property.c b/drivers/gpu/drm/drm_property.c
index 596272149a35..3440f4560e6e 100644
--- a/drivers/gpu/drm/drm_property.c
+++ b/drivers/gpu/drm/drm_property.c
@@ -117,7 +117,7 @@ struct drm_property *drm_property_create(struct drm_device *dev,
property->values = kcalloc(num_values, sizeof(uint64_t),
GFP_KERNEL);
if (!property->values)
- goto fail;
+ goto free_property;
}

ret = drm_mode_object_add(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
@@ -135,6 +135,7 @@ struct drm_property *drm_property_create(struct drm_device *dev,
return property;
fail:
kfree(property->values);
+free_property:
kfree(property);
return NULL;
}
--
2.43.0