fix raw_pread_aligned return value

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 <hch@lst.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

fix raw_pread_aligned return value
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 <hch@lst.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Christoph Hellwig · Anthony Liguori
1 parent afd32160
Showing 1 changed file with 1 additions and 1 deletions
block/raw-posix.c
@@ -249,7 +249,7 @@ static int raw_pread_aligned(BlockDriverState *bs, int64_t offset,
  
 label__raw_read__success:
  
-    return ret;
+    return  (ret < 0) ? -errno : ret;
 }
  
 /*