common/blkdev: check retval of stat()

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/src/common/blkdev.cc b/src/common/blkdev.cc
index 1c03ffb1f405423df8740754c6c313ce277a135b..509a397fa85c0ac83e898e6dbb033989b7f041dc 100644 (file)
--- a/src/common/blkdev.cc
+++ b/src/common/blkdev.cc
@@ -92,7 +92,7 @@ int BlkDev::get_devid(dev_t *id) const
   } else {
     char path[PATH_MAX];
     snprintf(path, sizeof(path), "/dev/%s", devname.c_str());
-    stat(path, &st);
+    r = stat(path, &st);
   }
   if (r < 0) {
     return -errno;