[libvirt] [PATCH v3 5/6] virFileInData: preserve errno in cleanup path

[Michal Privoznik]

Callers might be interested in the original value of errno. Let's
not overwrite it with lseek() done in cleanup path.

Signed-off-by: Michal Privoznik <mprivozn at redhat.com>
---
 src/util/virfile.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/util/virfile.c b/src/util/virfile.c
index d444b32f8..2be64f1db 100644
--- a/src/util/virfile.c
+++ b/src/util/virfile.c
@@ -3900,8 +3900,11 @@ virFileInData(int fd,
     ret = 0;
  cleanup:
     /* At any rate, reposition back to where we started. */
-    if (cur != (off_t) -1)
+    if (cur != (off_t) -1) {
+        int save_errno = errno;
         ignore_value(lseek(fd, cur, SEEK_SET));
+        errno = save_errno;
+    }
     return ret;
 }
 
-- 
2.13.0