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mtd: nand: bbt: Use the bitmap API to allocate bitmaps

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Use bitmap_zalloc()/bitmap_free() instead of hand-writing them.

It is less verbose and it improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/b18c2b6711b8930f0dfb8318b5d19ef6e41f0f9a.1656864573.git.christophe.jaillet@wanadoo.fr
This commit is contained in:
Christophe JAILLET 2022-07-03 18:09:45 +02:00 committed by Miquel Raynal
parent 7471a53ddc
commit 054c6b58fc
1 changed files with 2 additions and 5 deletions
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7
drivers/mtd/nand/bbt.c
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@ -24,11 +24,8 @@ int nanddev_bbt_init(struct nand_device *nand)
{
unsigned int bits_per_block = fls(NAND_BBT_BLOCK_NUM_STATUS);
unsigned int nblocks = nanddev_neraseblocks(nand);
unsigned int nwords = DIV_ROUND_UP(nblocks * bits_per_block,
BITS_PER_LONG);
nand->bbt.cache = kcalloc(nwords, sizeof(*nand->bbt.cache),
GFP_KERNEL);
nand->bbt.cache = bitmap_zalloc(nblocks * bits_per_block, GFP_KERNEL);
if (!nand->bbt.cache)
return -ENOMEM;
@ -44,7 +41,7 @@ EXPORT_SYMBOL_GPL(nanddev_bbt_init);
*/
void nanddev_bbt_cleanup(struct nand_device *nand)
{
kfree(nand->bbt.cache);
bitmap_free(nand->bbt.cache);
}
EXPORT_SYMBOL_GPL(nanddev_bbt_cleanup);