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authorLinus Torvalds2020-12-17 17:46:34 -0800
committerLinus Torvalds2020-12-17 17:46:34 -0800
commit787fec8ac15cc693b9a7bc1b4a338b92483d993c (patch)
tree691ec33f3b66aee1f53117c09764c702eff718b1 /drivers/mtd
parente13300bdaa68f5487000e66baed1ff69bcb510bf (diff)
parentb80a974b8c58164ed57b0f025a47b8f003198d9e (diff)
Merge tag 'for-linus-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
Pull jffs2, ubi and ubifs updates from Richard Weinberger: "JFFS2: - Fix for a remount regression - Fix for an abnormal GC exit - Fix for a possible NULL pointer issue while mounting UBI: - Add support ECC-ed NOR flash - Removal of dead code UBIFS: - Make node dumping debug code more reliable - Various cleanups: less ifdefs, less typos - Fix for an info leak" * tag 'for-linus-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs: ubifs: ubifs_dump_node: Dump all branches of the index node ubifs: ubifs_dump_sleb: Remove unused function ubifs: Pass node length in all node dumping callers Revert "ubifs: Fix out-of-bounds memory access caused by abnormal value of node_len" ubifs: Limit dumping length by size of memory which is allocated for the node ubifs: Remove the redundant return in dbg_check_nondata_nodes_order jffs2: Fix NULL pointer dereference in rp_size fs option parsing ubifs: Fixed print foramt mismatch in ubifs ubi: Do not zero out EC and VID on ECC-ed NOR flashes jffs2: remove trailing semicolon in macro definition ubifs: Fix error return code in ubifs_init_authentication() ubifs: wbuf: Don't leak kernel memory to flash ubi: Remove useless code in bytes_str_to_int ubifs: Fix the printing type of c->big_lpt jffs2: Allow setting rp_size to zero during remounting jffs2: Fix ignoring mounting options problem during remounting jffs2: Fix GC exit abnormally ubifs: Code cleanup by removing ifdef macro surrounding jffs2: Fix if/else empty body warnings ubifs: Delete duplicated words + other fixes
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/ubi/build.c6
-rw-r--r--drivers/mtd/ubi/io.c9
2 files changed, 9 insertions, 6 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 40fa994ad6a8..f399edc82191 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -629,10 +629,8 @@ static int io_init(struct ubi_device *ubi, int max_beb_per1024)
ubi->bad_peb_limit = get_bad_peb_limit(ubi, max_beb_per1024);
}
- if (ubi->mtd->type == MTD_NORFLASH) {
- ubi_assert(ubi->mtd->writesize == 1);
+ if (ubi->mtd->type == MTD_NORFLASH)
ubi->nor_flash = 1;
- }
ubi->min_io_size = ubi->mtd->writesize;
ubi->hdrs_min_io_size = ubi->mtd->writesize >> ubi->mtd->subpage_sft;
@@ -1352,8 +1350,6 @@ static int bytes_str_to_int(const char *str)
fallthrough;
case 'K':
result *= 1024;
- if (endp[1] == 'i' && endp[2] == 'B')
- endp += 2;
case '\0':
break;
default:
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index 14d890b00d2c..2f3312c31e51 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -535,7 +535,14 @@ int ubi_io_sync_erase(struct ubi_device *ubi, int pnum, int torture)
return -EROFS;
}
- if (ubi->nor_flash) {
+ /*
+ * If the flash is ECC-ed then we have to erase the ECC block before we
+ * can write to it. But the write is in preparation to an erase in the
+ * first place. This means we cannot zero out EC and VID before the
+ * erase and we just have to hope the flash starts erasing from the
+ * start of the page.
+ */
+ if (ubi->nor_flash && ubi->mtd->writesize == 1) {
err = nor_erase_prepare(ubi, pnum);
if (err)
return err;