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Subject[PATCH v5 1/2] staging: android: Remove BUG_ON from ion_page_pool.c
BUG_ON() is removed at ion_page_pool.c

Fixes the following issue:
Avoid crashing the kernel - try using WARN_ON & recovery code ratherthan BUG() or BUG_ON().

Signed-off-by: Tomer Samara <tomersamara98@gmail.com>
---
drivers/staging/android/ion/ion_page_pool.c | 6 ------
1 file changed, 6 deletions(-)

diff --git a/drivers/staging/android/ion/ion_page_pool.c b/drivers/staging/android/ion/ion_page_pool.c
index 0198b886d906..fa764299f004 100644
--- a/drivers/staging/android/ion/ion_page_pool.c
+++ b/drivers/staging/android/ion/ion_page_pool.c
@@ -46,11 +46,9 @@ static struct page *ion_page_pool_remove(struct ion_page_pool *pool, bool high)
struct page *page;

if (high) {
- BUG_ON(!pool->high_count);
page = list_first_entry(&pool->high_items, struct page, lru);
pool->high_count--;
} else {
- BUG_ON(!pool->low_count);
page = list_first_entry(&pool->low_items, struct page, lru);
pool->low_count--;
}
@@ -65,8 +63,6 @@ struct page *ion_page_pool_alloc(struct ion_page_pool *pool)
{
struct page *page = NULL;

- BUG_ON(!pool);
-
mutex_lock(&pool->mutex);
if (pool->high_count)
page = ion_page_pool_remove(pool, true);
@@ -82,8 +78,6 @@ struct page *ion_page_pool_alloc(struct ion_page_pool *pool)

void ion_page_pool_free(struct ion_page_pool *pool, struct page *page)
{
- BUG_ON(pool->order != compound_order(page));
-
ion_page_pool_add(pool, page);
}

--
2.25.1
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