From 78e0ba4ce8d2e31c67e026f32279ad9f46a387f5 Mon Sep 17 00:00:00 2001
From: Martin Kutlak <mkutlak@redhat.com>
Date: Mon, 20 Aug 2018 17:08:33 +0200
Subject: [PATCH] coverity: Check return value of fstat call #def31

Signed-off-by: Martin Kutlak <mkutlak@redhat.com>
---
 src/lib/read_write.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lib/read_write.c b/src/lib/read_write.c
index 657adb0c..a2e76db0 100644
--- a/src/lib/read_write.c
+++ b/src/lib/read_write.c
@@ -133,8 +133,8 @@ void* xmalloc_read(int fd, size_t *maxsz_p)
     /* Estimate file size */
     {
         struct stat st;
-        st.st_size = 0; /* in case fstat fails, assume 0 */
-        fstat(fd, &st);
+        if (fstat(fd, &st) != 0)
+            st.st_size = 0; /* in case fstat fails, assume 0 */
         /* /proc/N/stat files report st_size 0 */
         /* In order to make such files readable, we add small const (4k) */
         size = (st.st_size | 0xfff) + 1;
-- 
2.17.1