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[MTD] mtdoops: Fix an off by one error 

Fix an off by one error in the mtdoops driver

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Richard Purdie 2008-07-26 09:17:41 +01:00 committed by David Woodhouse
parent a52c8afdd0
commit ecd5b31023
1 changed files with 3 additions and 3 deletions
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6
drivers/mtd/mtdoops.c
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@ -99,7 +99,7 @@ static void mtdoops_inc_counter(struct mtdoops_context *cxt)
int ret;
cxt->nextpage++;
if (cxt->nextpage > cxt->oops_pages)
if (cxt->nextpage >= cxt->oops_pages)
cxt->nextpage = 0;
cxt->nextcount++;
if (cxt->nextcount == 0xffffffff)
@ -141,7 +141,7 @@ static void mtdoops_workfunc_erase(struct work_struct *work)
mod = (cxt->nextpage * OOPS_PAGE_SIZE) % mtd->erasesize;
if (mod != 0) {
cxt->nextpage = cxt->nextpage + ((mtd->erasesize - mod) / OOPS_PAGE_SIZE);
if (cxt->nextpage > cxt->oops_pages)
if (cxt->nextpage >= cxt->oops_pages)
cxt->nextpage = 0;
}
@ -158,7 +158,7 @@ static void mtdoops_workfunc_erase(struct work_struct *work)
cxt->nextpage * OOPS_PAGE_SIZE);
i++;
cxt->nextpage = cxt->nextpage + (mtd->erasesize / OOPS_PAGE_SIZE);
if (cxt->nextpage > cxt->oops_pages)
if (cxt->nextpage >= cxt->oops_pages)
cxt->nextpage = 0;
if (i == (cxt->oops_pages / (mtd->erasesize / OOPS_PAGE_SIZE))) {
printk(KERN_ERR "mtdoops: All blocks bad!\n");