| From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> |
| Date: Mon, 9 Mar 2020 08:30:19 +0100 |
| Subject: [PATCH] mtd: fix calculating partition end address |
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| Content-Type: text/plain; charset=UTF-8 |
| Content-Transfer-Encoding: 8bit |
| |
| This fixes check for partitions that don't start at beginning of their |
| parents. Missing partition's offset in formula could result in forcing |
| read-only incorrectly. |
| |
| Fixes: 6750f61a13a0 ("mtd: improve calculating partition boundaries when checking for alignment") |
| Signed-off-by: Rafał Miłecki <rafal@milecki.pl> |
| --- |
| drivers/mtd/mtdpart.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| --- a/drivers/mtd/mtdpart.c |
| +++ b/drivers/mtd/mtdpart.c |
| @@ -524,7 +524,7 @@ static struct mtd_part *allocate_partiti |
| part->name); |
| } |
| |
| - tmp = part_absolute_offset(parent) + slave->mtd.size; |
| + tmp = part_absolute_offset(parent) + slave->offset + slave->mtd.size; |
| remainder = do_div(tmp, wr_alignment); |
| if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) { |
| slave->mtd.flags &= ~MTD_WRITEABLE; |