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authorArtem Bityutskiy <artem.bityutskiy@linux.intel.com>2012-08-18 14:11:42 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-07 08:27:26 -0700
commit079c1ed89e26fb3548b92f137848e11158c8e691 (patch)
tree64375b4573110ae5c49902047eebcd6144868778
parente54195a3bb9d5025d96b0e3d3bb8de07a506d4f5 (diff)
UBI: fix autoresize handling in R/O mode
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.rohar@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/mtd/ubi/build.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 65626c1c446..2b351d0b1ff 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -816,6 +816,11 @@ 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