UBI: fix autoresize handling in R/O mode



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.rohar@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

parent db7e21c2

drivers/mtd/ubi/build.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -799,6 +799,11 @@ static int autoresize(struct ubi_device *ubi, int vol_id)
		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