commit a1038a95667503457423a994510dd528e2ed3e90
author tao.pei <tao.pei@ck-telecom.com> Mon Aug 17 20:18:49 2015 +0800
committer tao.pei <tao.pei@ck-telecom.com> Mon Aug 17 20:22:17 2015 +0800
tree c4b44b6da4ee7d803d9fee8e5dd3c1e1efb00578
parent 6d24e0866f61aba0ac3023408ead083ad9b6cdab

Use errno correctly.

Make sure to check errno prior to doing anything
else that can modify it.

Change-Id: Id81ecc2c3fa07c222ab1e2ef6441331a1eaad635

Loop.cpp

diff --git a/Loop.cpp b/Loop.cpp
index b1e9f6a..37ad102 100644
--- a/Loop.cpp
+++ b/Loop.cpp
@@ -103,10 +103,11 @@
         }
 
         rc = ioctl(fd, LOOP_GET_STATUS64, &li);
-        close(fd);
         if (rc < 0 && errno == ENXIO) {
+            close(fd);
             continue;
         }
+        close(fd);
 
         if (rc < 0) {
             SLOGE("Unable to get loop status for %s (%s)", filename,