commit 15ccd341c4db2eb022d7a1cbdc6d681063357809
author Steven Moreland <smoreland@google.com> Fri Mar 27 15:48:40 2020 -0700
committer Steven Moreland <smoreland@google.com> Fri Mar 27 16:38:29 2020 -0700
tree 655787b7511096aa73c70503b8eb0331303adecd
parent b2e0ee2da2331a6bc0fe0ae0bbbde80da107c0d9

libvintf: logging for listFiles error

Bug: 151696835
Test: atest .
Change-Id: I7846fa4687302b192ad19134aaefdbcce1ddf76c

FileSystem.cpp

diff --git a/FileSystem.cpp b/FileSystem.cpp
index 4a1043a..6b1f73a 100644
--- a/FileSystem.cpp
+++ b/FileSystem.cpp
@@ -64,6 +64,11 @@
             out->push_back(dp->d_name);
         }
     }
+    if (errno != 0) {
+        if (error) {
+            *error = "Failed while reading directory " + path + ": " + strerror(errno);
+        }
+    }
     return -errno;
 }
 

VintfObject.cpp

diff --git a/VintfObject.cpp b/VintfObject.cpp
index a19d3e1..eca74d0 100644
--- a/VintfObject.cpp
+++ b/VintfObject.cpp
@@ -56,8 +56,9 @@
     if (skipCache || !ptr->fetchedOnce) {
         ptr->object = std::make_unique<T>();
         std::string error;
-        if (fetchAllInformation(ptr->object.get(), &error) != OK) {
-            LOG(WARNING) << error;
+        status_t status = fetchAllInformation(ptr->object.get(), &error);
+        if (status != OK) {
+            LOG(WARNING) << status << ": " << error;
             ptr->object = nullptr; // frees the old object
         }
         ptr->fetchedOnce = true;