3.5-stable review patch. If anyone has any objections, please let me know.
------------------
From: Artem Bityutskiy <artem.bityuts...@linux.intel.com>
commit abb3e01103eb4e2ea5c15e6fedbc74e08bd4cc2b upstream.
Currently UBI fails in autoresize when it is in R/O mode (e.g., because the
underlying MTD device is R/O). This patch fixes the issue - we just skip
autoresize and print a warning.
Reported-by: Pali Rohár <pali.ro...@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityuts...@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/mtd/ubi/build.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -759,6 +759,11 @@ static int autoresize(struct ubi_device
struct ubi_volume *vol = ubi->volumes[vol_id];
int err, old_reserved_pebs = vol->reserved_pebs;
+ if (ubi->ro_mode) {
+ ubi_warn("skip auto-resize because of R/O mode");
+ return 0;
+ }
+
/*
* Clear the auto-resize flag in the volume in-memory copy of the
* volume table, and 'ubi_resize_volume()' will propagate this change
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