From bf3e6b8f837afdf01d31cdc86028660f3f342bbe Mon Sep 17 00:00:00 2001 From: Gaosheng Cui Date: Tue, 16 Aug 2022 21:59:10 +0800 Subject: [PATCH] mtd: ftl: use container_of() rather than cast The container_of() is much more readable and also safer. Signed-off-by: Gaosheng Cui Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20220816135910.268016-1-cuigaosheng1@huawei.com --- drivers/mtd/ftl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c index f655d2905270..8c22064ead38 100644 --- a/drivers/mtd/ftl.c +++ b/drivers/mtd/ftl.c @@ -941,7 +941,7 @@ static int ftl_write(partition_t *part, caddr_t buffer, static int ftl_getgeo(struct mtd_blktrans_dev *dev, struct hd_geometry *geo) { - partition_t *part = (void *)dev; + partition_t *part = container_of(dev, struct partition_t, mbd); u_long sect; /* Sort of arbitrary: round size down to 4KiB boundary */ @@ -969,7 +969,7 @@ static int ftl_writesect(struct mtd_blktrans_dev *dev, static int ftl_discardsect(struct mtd_blktrans_dev *dev, unsigned long sector, unsigned nr_sects) { - partition_t *part = (void *)dev; + partition_t *part = container_of(dev, struct partition_t, mbd); uint32_t bsize = 1 << part->header.EraseUnitSize; pr_debug("FTL erase sector %ld for %d sectors\n",