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md/bitmap:Don't use IS_ERR to judge alloc_page().

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Signed-off-by: Jianpeng Ma <[email protected]>
Signed-off-by: NeilBrown <[email protected]>
This commit is contained in:
Jianpeng Ma 2012-10-11 13:45:36 +11:00 • committed by NeilBrown
commit 582e2e056a
1 changed files with 2 additions and 6 deletions
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8
drivers/md/bitmap.c
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@ -470,14 +470,10 @@ static int bitmap_new_disk_sb(struct bitmap *bitmap)
{
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);