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authorBrian Norris <computersforpeace@gmail.com>2011-12-09 11:45:14 -0800
committerArtem Bityutskiy <Artem.Bityutskiy@linux.intel.com>2011-12-12 23:45:54 +0200
commitec985197e7cd6ec33f41273bff7afd4c4f454b87 (patch)
tree3c5e73913d93dc701c07eecbc2343239de06b18f
parent44bf457d63085c0eafc6f2504bf8535183d4395c (diff)
libmtd: allow write operations when MEMWRITE is not supported
MEMWRITE is a recently introduced write interface for MTD; however, it is only supported on NAND flash. mtd-utils should fall back to old write methods when either ENOTTY or EOPNOTSUPP are returned. This is a showstopper when, for instance, using ubiformat on NOR, which don't have a mtd->write_oob interface (and thus don't support MEMWRITE): ubiformat: formatting eraseblock 2 -- 1 % complete libmtd: error!: MEMWRITE ioctl failed for eraseblock 2 (mtd3) error 122 (Operation not supported) Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
-rw-r--r--lib/libmtd.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/libmtd.c b/lib/libmtd.c
index 1b16de5..9b247ae 100644
--- a/lib/libmtd.c
+++ b/lib/libmtd.c
@@ -1151,7 +1151,7 @@ int mtd_write(libmtd_t desc, const struct mtd_dev_info *mtd, int fd, int eb,
ret = ioctl(fd, MEMWRITE, &ops);
if (ret == 0)
return 0;
- else if (errno != ENOTTY)
+ else if (errno != ENOTTY && errno != EOPNOTSUPP)
return mtd_ioctl_error(mtd, eb, "MEMWRITE");
/* Fall back to old methods if necessary */