UBIFS: fix error return in failure mode

UBIFS recovery testing debug facility simulates media failures.
When simulating an IO error, the error code returned must be
-EIO but it was not always if the user switched off the
debug recovery testing option at the same time.

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>

diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index 4e3aaeb..0adfb29 100644 (file)
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -2208,16 +2208,17 @@ int dbg_leb_read(struct ubi_volume_desc *desc, int lnum, char *buf, int offset,
 int dbg_leb_write(struct ubi_volume_desc *desc, int lnum, const void *buf,
                  int offset, int len, int dtype)
 {
-       int err;
+       int err, failing;
 
        if (in_failure_mode(desc))
                return -EIO;
-       if (do_fail(desc, lnum, 1))
+       failing = do_fail(desc, lnum, 1);
+       if (failing)
                cut_data(buf, len);
        err = ubi_leb_write(desc, lnum, buf, offset, len, dtype);
        if (err)
                return err;
-       if (in_failure_mode(desc))
+       if (failing)
                return -EIO;
        return 0;
 }