From 20c4596e13cef1c66469c75386cc738ba3acb288 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Wed, 13 May 2009 14:06:22 +0200 Subject: [PATCH] mtd_dataflash: unbreak erase support Commit 5b7f3a50 (fix dataflash 64-bit divisions) unfortunately introduced a typo. Erase addr and len were swapped in the pageaddr calculation, causing the wrong sectors to get erased. Please consider for 2.6.29-stable as well. Signed-off-by: Peter Korsgaard --- drivers/mtd/devices/mtd_dataflash.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c index 62dee54..43976aa 100644 --- a/drivers/mtd/devices/mtd_dataflash.c +++ b/drivers/mtd/devices/mtd_dataflash.c @@ -178,7 +178,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr) /* Calculate flash page address; use block erase (for speed) if * we're at a block boundary and need to erase the whole block. */ - pageaddr = div_u64(instr->len, priv->page_size); + pageaddr = div_u64(instr->addr, priv->page_size); do_block = (pageaddr & 0x7) == 0 && instr->len >= blocksize; pageaddr = pageaddr << priv->page_offset; -- 1.6.2