From 2f2700b8b6218fcd9cbf07429c7f676a6fcfd8bc Mon Sep 17 00:00:00 2001
From: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Date: Thu, 18 Oct 2007 20:09:41 +0300
Subject: [PATCH] --- yaml --- r: 84214 b: refs/heads/master c:
 2362a53ec59f286495307e0e0d8ef2401e8c5c49 h: refs/heads/master v: v3

---
 [refs]                     |  2 +-
 trunk/drivers/mtd/ubi/io.c | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 9851b8feda3f..d1be0ce919ff 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 235d6200ea63372935e097cb82e6a8c133d51cad
+refs/heads/master: 2362a53ec59f286495307e0e0d8ef2401e8c5c49
diff --git a/trunk/drivers/mtd/ubi/io.c b/trunk/drivers/mtd/ubi/io.c
index 7c304eec78b5..db3efdef2433 100644
--- a/trunk/drivers/mtd/ubi/io.c
+++ b/trunk/drivers/mtd/ubi/io.c
@@ -173,6 +173,16 @@ int ubi_io_read(const struct ubi_device *ubi, void *buf, int pnum, int offset,
 		ubi_err("error %d while reading %d bytes from PEB %d:%d, "
 			"read %zd bytes", err, len, pnum, offset, read);
 		ubi_dbg_dump_stack();
+
+		/*
+		 * The driver should never return -EBADMSG if it failed to read
+		 * all the requested data. But some buggy drivers might do
+		 * this, so we change it to -EIO.
+		 */
+		if (read != len && err == -EBADMSG) {
+			ubi_assert(0);
+			err = -EIO;
+		}
 	} else {
 		ubi_assert(len == read);