diff options
Diffstat (limited to 'tools/fs-back/fs-xenbus.c')
| -rw-r--r-- | tools/fs-back/fs-xenbus.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/fs-back/fs-xenbus.c b/tools/fs-back/fs-xenbus.c index e883b661a0..70ddcbbf87 100644 --- a/tools/fs-back/fs-xenbus.c +++ b/tools/fs-back/fs-xenbus.c @@ -105,11 +105,18 @@ error_exit: int xenbus_get_watch_fd(void) { int res; +#if DEBUG + int errno_orig; +#endif assert(xsh != NULL); res = xs_watch(xsh, WATCH_NODE, "conn-watch"); if (!res) { +#if DEBUG + errno_orig = errno; FS_DEBUG("ERROR: xs_watch %s failed ret=%d errno=%d\n", WATCH_NODE, res, errno); + errno = errno_orig; +#endif return -1; } return xs_fileno(xsh); |