[Qemu-devel] [PATCH 07/15] fix raw_pread_aligned return value

[Glauber Costa]

From: Christoph Hellwig <address@hidden>

raw_pread_aligned currently returns the raw return value from
lseek/read, which is always -1 in case of an error.  But the
callers higher up the stack expect it to return the negated
errno just like raw_pwrite_aligned.

Signed-off-by: Christoph Hellwig <address@hidden>
Signed-off-by: Anthony Liguori <address@hidden>
Signed-off-by: Glauber Costa <address@hidden>
---
 block-raw-posix.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/block-raw-posix.c b/block-raw-posix.c
index 85ca704..af3d468 100644
--- a/block-raw-posix.c
+++ b/block-raw-posix.c
@@ -234,7 +234,7 @@ static int raw_pread_aligned(BlockDriverState *bs, int64_t 
offset,
 
 label__raw_read__success:
 
-    return ret;
+    return  (ret < 0) ? -errno : ret;
 }
 
 /*
-- 
1.6.2.2