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authorQi Zheng <zhengqi.arch@bytedance.com>2023-06-25 15:49:37 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-08-04 15:25:01 +0200
commitadb9743d6a08778b78d62d16b4230346d3508986 (patch)
tree743ebc43859968ed3e1861e04437fd1f67396316 /drivers/android/binder_alloc.c
parent63b93e70c862922fedb8d1045e89245bc984a898 (diff)
binder: fix memory leak in binder_init()
In binder_init(), the destruction of binder_alloc_shrinker_init() is not performed in the wrong path, which will cause memory leaks. So this commit introduces binder_alloc_shrinker_exit() and calls it in the wrong path to fix that. Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com> Acked-by: Carlos Llamas <cmllamas@google.com> Fixes: f2517eb76f1f ("android: binder: Add global lru shrinker to binder") Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/20230625154937.64316-1-qi.zheng@linux.dev Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/android/binder_alloc.c')
-rw-r--r--drivers/android/binder_alloc.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 662a2a2e2e84..e3db8297095a 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -1087,6 +1087,12 @@ int binder_alloc_shrinker_init(void)
return ret;
}
+void binder_alloc_shrinker_exit(void)
+{
+ unregister_shrinker(&binder_shrinker);
+ list_lru_destroy(&binder_alloc_lru);
+}
+
/**
* check_buffer() - verify that buffer/offset is safe to access
* @alloc: binder_alloc for this proc