From bdc5f06789c5a0c3a9a2c0eb33ec4d177dbdaa22 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Mon, 17 May 2010 10:01:05 +0200
Subject: [PATCH] UBI: Fix problem in UBI/Linux "compatibility layer"
"down_write_trylock" needs to return 1 instead of 0 for success.
Otherwise copying a block with a read error (e.g. bit-flip on read)
won't work correctly.
Signed-off-by: Stefan Roese <sr@denx.de>
---
include/ubi_uboot.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/ubi_uboot.h b/include/ubi_uboot.h
index 60f6a5fb4f5..d2c90a6b447 100644
--- a/include/ubi_uboot.h
+++ b/include/ubi_uboot.h
@@ -123,7 +123,7 @@ typedef int wait_queue_head_t;
#define init_rwsem(...) do { } while (0)
#define down_read(...) do { } while (0)
#define down_write(...) do { } while (0)
-#define down_write_trylock(...) 0
+#define down_write_trylock(...) 1
#define up_read(...) do { } while (0)
#define up_write(...) do { } while (0)
--
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