[committed, PATCH] Close fd only if fd != -1

["H.J. Lu" <hongjiu dot lu at intel dot com>]

I checked in this patch to close fd only if fd != -1.  

H.J.
	* plugin.c (release_input_file): Set fd to -1 after closing it.
	(plugin_maybe_claim): Close fd only if fd != -1.
---
 ld/ChangeLog | 5 +++++
 ld/plugin.c  | 9 ++++++---
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 0d767ba..4ae174b 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,5 +1,10 @@
 2015-02-05  H.J. Lu  <hongjiu.lu@intel.com>
 
+	* plugin.c (release_input_file): Set fd to -1 after closing it.
+	(plugin_maybe_claim): Close fd only if fd != -1.
+
+2015-02-05  H.J. Lu  <hongjiu.lu@intel.com>
+
 	PR ld/17878
 	* plugin.c: Include <errno.h>.
 	(errno): New.  Declare if needed.
diff --git a/ld/plugin.c b/ld/plugin.c
index 28236f2..ae0ac89 100644
--- a/ld/plugin.c
+++ b/ld/plugin.c
@@ -512,10 +512,13 @@ get_view (const void *handle, const void **viewp)
 static enum ld_plugin_status
 release_input_file (const void *handle)
 {
-  const plugin_input_file_t *input = handle;
+  plugin_input_file_t *input = (plugin_input_file_t *) handle;
   ASSERT (called_plugin);
   if (input->fd != -1)
-    close (input->fd);
+    {
+      close (input->fd);
+      input->fd = -1;
+    }
   return LDPS_OK;
 }
 
@@ -964,7 +967,7 @@ plugin_maybe_claim (struct ld_plugin_input_file *file,
     einfo (_("%P%F: %s: plugin reported error claiming file\n"),
 	   plugin_error_plugin ());
 
-  if (bfd_check_format (entry->the_bfd, bfd_object))
+  if (input->fd != -1 && bfd_check_format (entry->the_bfd, bfd_object))
     {
       /* FIXME: fd belongs to us, not the plugin.  IR for GCC plugin,
 	 which doesn't need fd after plugin_call_claim_file, is
-- 
1.9.3