hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Peter Korsgaard 2009-05-18 11:13:54 +01:00 committed by Linus Torvalds
parent bac9caf016
commit dbf8c11f82
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/mtd/devices/mtd_dataflash.c
View File

@ -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;