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| author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-10-10 11:43:50 +0000 |
|---|---|---|
| committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2012-10-10 11:43:50 +0000 |
| commit | 3caf621121b5bafc61251cf659e15492e61897a7 (patch) | |
| tree | 09074af10610aba10498049aea0e75ae629fc045 /target/linux/generic/patches-3.3/478-mtd-partial_eraseblock_unlock.patch | |
| parent | 041cd34c5ad8a78ac3275539dcdcf673c814dfe3 (diff) | |
| download | openwrt-3caf621121b5bafc61251cf659e15492e61897a7.tar.gz openwrt-3caf621121b5bafc61251cf659e15492e61897a7.zip | |
ixp4xx, cns3xx: backport the latest round of fixes (as of r33684)
git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33685 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-3.3/478-mtd-partial_eraseblock_unlock.patch')
| -rw-r--r-- | target/linux/generic/patches-3.3/478-mtd-partial_eraseblock_unlock.patch | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.3/478-mtd-partial_eraseblock_unlock.patch b/target/linux/generic/patches-3.3/478-mtd-partial_eraseblock_unlock.patch new file mode 100644 index 000000000..de4481a93 --- /dev/null +++ b/target/linux/generic/patches-3.3/478-mtd-partial_eraseblock_unlock.patch @@ -0,0 +1,18 @@ +--- a/drivers/mtd/mtdpart.c ++++ b/drivers/mtd/mtdpart.c +@@ -356,7 +356,14 @@ static int part_unlock(struct mtd_info * + struct mtd_part *part = PART(mtd); + if ((len + ofs) > mtd->size) + return -EINVAL; +- return mtd_unlock(part->master, ofs + part->offset, len); ++ ++ ofs += part->offset; ++ if (mtd->flags & MTD_ERASE_PARTIAL) { ++ /* round up len to next erasesize and round down offset to prev block */ ++ len = (mtd_div_by_eb(len, part->master) + 1) * part->master->erasesize; ++ ofs &= ~(part->master->erasesize - 1); ++ } ++ return mtd_unlock(part->master, ofs, len); + } + + static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len) |