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driver/ftl: Read the current eraseblock only

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case: The next eraseblock is bad

Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
This commit is contained in:
wangjianyu3 2024-02-06 12:40:17 +08:00 committed by Xiang Xiao
parent b2221806cb
commit c40f9b8d9f
1 changed files with 8 additions and 2 deletions
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10
drivers/mtd/ftl.c
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@ -287,6 +287,7 @@ static ssize_t ftl_mtd_bread(FAR struct ftl_struct_s *dev, off_t startblock,
{ {
off_t startphysicalblock; off_t startphysicalblock;
off_t starteraseblock; off_t starteraseblock;
size_t erase;
size_t count; size_t count;
starteraseblock = startblock / dev->blkper; starteraseblock = startblock / dev->blkper;
@ -296,9 +297,14 @@ static ssize_t ftl_mtd_bread(FAR struct ftl_struct_s *dev, off_t startblock,
break; break;
} }
count = ftl_get_cblock(dev, starteraseblock, erase = ftl_get_cblock(dev, starteraseblock,
(nblocks + mask) / dev->blkper); (nblocks + mask) / dev->blkper);
count = MIN(count * dev->blkper, nblocks); count = MIN(erase * dev->blkper, nblocks);
if (erase == 1)
{
count -= startblock & mask;
}
startphysicalblock = dev->lptable[starteraseblock] * startphysicalblock = dev->lptable[starteraseblock] *
dev->blkper + (startblock & mask); dev->blkper + (startblock & mask);
ret = MTD_BREAD(dev->mtd, startphysicalblock, count, buffer); ret = MTD_BREAD(dev->mtd, startphysicalblock, count, buffer);