[PATCH 2/3] staging: androind: Add error handling to ion_page_pool_shrink

Tomer Samara
2020-08-16T17:22:25Z

Add error check to ion_page_pool_shrink after calling
ion_page_pool_remove, due to converting BUG_ON to WARN_ON.

Signed-off-by: Tomer Samara <tomersamara98@gmail.com>
---
drivers/staging/android/ion/ion_page_pool.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/staging/android/ion/ion_page_pool.c b/drivers/staging/android/ion/ion_page_pool.c
index 4acc0eebf781..c61548ecf7f2 100644
--- a/drivers/staging/android/ion/ion_page_pool.c
+++ b/drivers/staging/android/ion/ion_page_pool.c
@@ -128,6 +128,8 @@ int ion_page_pool_shrink(struct ion_page_pool *pool, gfp_t gfp_mask,
break;
}
mutex_unlock(&pool->mutex);
+ if (!page)
+ break;
ion_page_pool_free_pages(pool, page);
freed += (1 << pool->order);
}
--
2.25.1