From 8f94b49a5b5d386c038e355bef6347298aabd211 Mon Sep 17 00:00:00 2001
From: Zhipeng Lu <alexious@zju.edu.cn>
Date: Thu, 1 Feb 2024 20:48:44 +0800
Subject: [PATCH] media: v4l2-mem2mem: fix a memleak in v4l2_m2m_register_entity
Git-commit: 8f94b49a5b5d386c038e355bef6347298aabd211
Patch-mainline: v6.9-rc1
References: git-fixes
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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/media/v4l2-core/v4l2-mem2mem.c | 10 ++++++++--
1 file 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;
}
--
2.43.0