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29 lines
1.0 KiB
Diff
29 lines
1.0 KiB
Diff
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From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Mon, 9 Mar 2020 08:30:19 +0100
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Subject: [PATCH] mtd: fix calculating partition end address
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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This fixes check for partitions that don't start at beginning of their
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parents. Missing partition's offset in formula could result in forcing
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read-only incorrectly.
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Fixes: 6750f61a13a0 ("mtd: improve calculating partition boundaries when checking for alignment")
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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
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---
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drivers/mtd/mtdpart.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/mtd/mtdpart.c
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+++ b/drivers/mtd/mtdpart.c
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@@ -538,7 +538,7 @@ static struct mtd_part *allocate_partiti
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part->name);
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}
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- tmp = part_absolute_offset(parent) + slave->mtd.size;
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+ tmp = part_absolute_offset(parent) + slave->offset + slave->mtd.size;
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remainder = do_div(tmp, wr_alignment);
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if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
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slave->mtd.flags &= ~MTD_WRITEABLE;
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