From: Chaitanya Kulkarni <kch@nvidia.com>
Date: Tue, 22 Feb 2022 07:28:52 -0800
Subject: [PATCH] null_blk: null_alloc_page() cleanup
Git-commit: df00b1d26c3c3ff9dae4b572a6ad878ab65334e1
Patch-mainline: v5.18-rc1
References: jsc#PED-1183
Remove goto labels and use direct returns as error unwinding code only
needs to free t_page variable if we alloc_pages() call fails as having
two labels for one kfree() can be avoided easily.
Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220222152852.26043-3-kch@nvidia.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Hannes Reinecke <hare@suse.com>
---
drivers/block/null_blk/main.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c
index 80f9a6ba376d..05b1120e6623 100644
--- a/drivers/block/null_blk/main.c
+++ b/drivers/block/null_blk/main.c
@@ -783,18 +783,16 @@ static struct nullb_page *null_alloc_page(void)
t_page = kmalloc(sizeof(struct nullb_page), GFP_NOIO);
if (!t_page)
- goto out;
+ return NULL;
t_page->page = alloc_pages(GFP_NOIO, 0);
- if (!t_page->page)
- goto out_freepage;
+ if (!t_page->page) {
+ kfree(t_page);
+ return NULL;
+ }
memset(t_page->bitmap, 0, sizeof(t_page->bitmap));
return t_page;
-out_freepage:
- kfree(t_page);
-out:
- return NULL;
}
static void null_free_page(struct nullb_page *t_page)
--
2.35.3