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authorZhipeng Lu <alexious@zju.edu.cn>2024-02-01 15:48:44 +0300
committerHans Verkuil <hverkuil-cisco@xs4all.nl>2024-02-05 14:57:45 +0300
commit8f94b49a5b5d386c038e355bef6347298aabd211 (patch)
tree439e402ede8fff0574f82518b62ed7fec6ca0d8e /drivers/media
parent8cf9c5051076e0eb958f4361d50d8b0c3ee6691c (diff)
downloadlinux-8f94b49a5b5d386c038e355bef6347298aabd211.tar.xz
media: v4l2-mem2mem: fix a memleak in v4l2_m2m_register_entity
The entity->name (i.e. name) is allocated in v4l2_m2m_register_entity but isn't freed in its following error-handling paths. This patch adds such deallocation to prevent memleak of entity->name. Fixes: be2fff656322 ("media: add helpers for memory-to-memory media controller") Signed-off-by: Zhipeng Lu <alexious@zju.edu.cn> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/v4l2-core/v4l2-mem2mem.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c
index 9e983176542b..75517134a5e9 100644
--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
+++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
@@ -1087,11 +1087,17 @@ static int v4l2_m2m_register_entity(struct media_device *mdev,
entity->function = function;
ret = media_entity_pads_init(entity, num_pads, pads);
- if (ret)
+ if (ret) {
+ kfree(entity->name);
+ entity->name = NULL;
return ret;
+ }
ret = media_device_register_entity(mdev, entity);
- if (ret)
+ if (ret) {
+ kfree(entity->name);
+ entity->name = NULL;
return ret;
+ }
return 0;
}