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dma-pool: Fix an uninitialized variable bug in atomic_pool_expand()
author
Dan Carpenter
<dan.carpenter@oracle.com>
Wed, 26 Aug 2020 11:33:30 +0000
(14:33 +0300)
committer
Christoph Hellwig
<hch@lst.de>
Thu, 27 Aug 2020 07:22:56 +0000
(09:22 +0200)
The "page" pointer can be used with out being initialized.
Fixes:
d7e673ec2c8e
("dma-pool: Only allocate from CMA when in same memory zone")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
kernel/dma/pool.c
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diff --git
a/kernel/dma/pool.c
b/kernel/dma/pool.c
index
06582b4
..
1281c0f
100644
(file)
--- a/
kernel/dma/pool.c
+++ b/
kernel/dma/pool.c
@@
-84,7
+84,7
@@
static int atomic_pool_expand(struct gen_pool *pool, size_t pool_size,
gfp_t gfp)
{
unsigned int order;
- struct page *page;
+ struct page *page
= NULL
;
void *addr;
int ret = -ENOMEM;