md/bitmap:Don't use IS_ERR to judge alloc_page().
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index df73375..7155945 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -470,14 +470,10 @@
{
bitmap_super_t *sb;
unsigned long chunksize, daemon_sleep, write_behind;
- int err = -EINVAL;
bitmap->storage.sb_page = alloc_page(GFP_KERNEL);
- if (IS_ERR(bitmap->storage.sb_page)) {
- err = PTR_ERR(bitmap->storage.sb_page);
- bitmap->storage.sb_page = NULL;
- return err;
- }
+ if (bitmap->storage.sb_page == NULL)
+ return -ENOMEM;
bitmap->storage.sb_page->index = 0;
sb = kmap_atomic(bitmap->storage.sb_page);