From: Christophe JAILLET <christophe.jaillet@wanadoo.fr> mainline inclusion from mainline-v6.1-rc1 commit e7f35da21f6f8c6a8c7d262dd4e4bd32e3083f79 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I9195H CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... ------------------------------------------------- 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> Reviewed-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> --- drivers/mtd/ubi/fastmap.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c index cdc2d713d3eb..154cb1bc3c38 100644 --- a/drivers/mtd/ubi/fastmap.c +++ b/drivers/mtd/ubi/fastmap.c @@ -20,8 +20,7 @@ static inline unsigned long *init_seen(struct ubi_device *ubi) if (!ubi_dbg_chk_fastmap(ubi)) return NULL; - ret = kcalloc(BITS_TO_LONGS(ubi->peb_count), sizeof(unsigned long), - GFP_KERNEL); + ret = bitmap_zalloc(ubi->peb_count, GFP_KERNEL); if (!ret) return ERR_PTR(-ENOMEM); @@ -34,7 +33,7 @@ static inline unsigned long *init_seen(struct ubi_device *ubi) */ static inline void free_seen(unsigned long *seen) { - kfree(seen); + bitmap_free(seen); } /** @@ -1097,8 +1096,7 @@ int ubi_fastmap_init_checkmap(struct ubi_volume *vol, int leb_count) if (!ubi->fast_attach) return 0; - vol->checkmap = kcalloc(BITS_TO_LONGS(leb_count), sizeof(unsigned long), - GFP_KERNEL); + vol->checkmap = bitmap_zalloc(leb_count, GFP_KERNEL); if (!vol->checkmap) return -ENOMEM; @@ -1107,7 +1105,7 @@ int ubi_fastmap_init_checkmap(struct ubi_volume *vol, int leb_count) void ubi_fastmap_destroy_checkmap(struct ubi_volume *vol) { - kfree(vol->checkmap); + bitmap_free(vol->checkmap); } /** -- 2.31.1