Always free matching vector from bfd_check_format_matches

At least one place calling list_matching_formats failed to free the
"matching" vector from bfd_check_format_matches afterwards.  Fix that
by calling free inside list_matching_formats.

binutils/
	* bucomm.c (list_matching_formats): Free arg.
	* addr2line.c (process_file): Adjust to suit.
	* ar.c (open_inarch, ranlib_touch): Likewise.
	* coffdump.c (main): Likewise.
	* nm.c (display_archive, display_file): Likewise.
	* objcopy.c (copy_file): Likewise.
	* objdump.c (display_object_bfd): Likewise.
	* size.c (display_bfd): Likewise.
	* srconv.c (main): Likewise.
ld/
	* ldlang.c (load_symbols): Free "matching".

10 files changed, 21 insertions, 49 deletions

diff --git a/binutils/addr2line.c b/binutils/addr2line.c
index fd2ac80..baf1671 100644
--- a/binutils/addr2line.c
+++ b/binutils/addr2line.c
@@ -452,10 +452,7 @@ process_file (const char *file_name, const char *section_name,
     {
       bfd_nonfatal (bfd_get_filename (abfd));
       if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
-	{
-	  list_matching_formats (matching);
-	  free (matching);
-	}
+	list_matching_formats (matching);
       xexit (1);
     }
 
diff --git a/binutils/ar.c b/binutils/ar.c
index 6f3f1d6..0fdf067 100644
--- a/binutils/ar.c
+++ b/binutils/ar.c
@@ -1037,10 +1037,7 @@ open_inarch (const char *archive_filename, const char *file)
     {
       bfd_nonfatal (archive_filename);
       if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
-	{
-	  list_matching_formats (matching);
-	  free (matching);
-	}
+	list_matching_formats (matching);
       xexit (1);
     }
 
@@ -1615,10 +1612,7 @@ ranlib_touch (const char *archname)
     {
       bfd_nonfatal (archname);
       if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
-	{
-	  list_matching_formats (matching);
-	  free (matching);
-	}
+	list_matching_formats (matching);
       xexit (1);
     }
 
diff --git a/binutils/bucomm.c b/binutils/bucomm.c
index 5cf9de7..fdc2209 100644
--- a/binutils/bucomm.c
+++ b/binutils/bucomm.c
@@ -160,15 +160,17 @@ set_default_bfd_target (void)
 
 /* After a FALSE return from bfd_check_format_matches with
    bfd_get_error () == bfd_error_file_ambiguously_recognized, print
-   the possible matching targets.  */
+   the possible matching targets and free the list of targets.  */
 
 void
-list_matching_formats (char **p)
+list_matching_formats (char **matching)
 {
   fflush (stdout);
   fprintf (stderr, _("%s: Matching formats:"), program_name);
+  char **p = matching;
   while (*p)
     fprintf (stderr, " %s", *p++);
+  free (matching);
   fputc ('\n', stderr);
 }
 
diff --git a/binutils/coffdump.c b/binutils/coffdump.c
index d760a6c..bccc395 100644
--- a/binutils/coffdump.c
+++ b/binutils/coffdump.c
@@ -541,10 +541,7 @@ main (int ac, char **av)
       bfd_nonfatal (input_file);
 
       if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
-	{
-	  list_matching_formats (matching);
-	  free (matching);
-	}
+	list_matching_formats (matching);
       exit (1);
     }
 
diff --git a/binutils/nm.c b/binutils/nm.c
index 539c568..49726ee 100644
--- a/binutils/nm.c
+++ b/binutils/nm.c
@@ -1626,10 +1626,7 @@ display_archive (bfd *file)
 	{
 	  bfd_nonfatal (bfd_get_filename (arfile));
 	  if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
-	    {
-	      list_matching_formats (matching);
-	      free (matching);
-	    }
+	    list_matching_formats (matching);
 	}
 
       if (last_arfile != NULL)
@@ -1686,10 +1683,7 @@ display_file (char *filename)
     {
       bfd_nonfatal (filename);
       if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
-	{
-	  list_matching_formats (matching);
-	  free (matching);
-	}
+	list_matching_formats (matching);
       retval = false;
     }
 
diff --git a/binutils/objcopy.c b/binutils/objcopy.c
index 7ad39e8..df87712 100644
--- a/binutils/objcopy.c
+++ b/binutils/objcopy.c
@@ -3925,15 +3925,9 @@ copy_file (const char *input_filename, const char *output_filename, int ofd,
       bfd_nonfatal_message (input_filename, NULL, NULL, NULL);
 
       if (obj_error == bfd_error_file_ambiguously_recognized)
-	{
-	  list_matching_formats (obj_matching);
-	  free (obj_matching);
-	}
+	list_matching_formats (obj_matching);
       if (core_error == bfd_error_file_ambiguously_recognized)
-	{
-	  list_matching_formats (core_matching);
-	  free (core_matching);
-	}
+	list_matching_formats (core_matching);
 
       status = 1;
     }
diff --git a/binutils/objdump.c b/binutils/objdump.c
index e8fa8ca..6782405 100644
--- a/binutils/objdump.c
+++ b/binutils/objdump.c
@@ -5426,7 +5426,6 @@ display_object_bfd (bfd *abfd)
     {
       nonfatal (bfd_get_filename (abfd));
       list_matching_formats (matching);
-      free (matching);
       return;
     }
 
@@ -5445,10 +5444,7 @@ display_object_bfd (bfd *abfd)
   nonfatal (bfd_get_filename (abfd));
 
   if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
-    {
-      list_matching_formats (matching);
-      free (matching);
-    }
+    list_matching_formats (matching);
 }
 
 static void
diff --git a/binutils/size.c b/binutils/size.c
index 86dc13e..7104025 100644
--- a/binutils/size.c
+++ b/binutils/size.c
@@ -337,7 +337,6 @@ display_bfd (bfd *abfd)
     {
       bfd_nonfatal (bfd_get_filename (abfd));
       list_matching_formats (matching);
-      free (matching);
       return_code = 3;
       return;
     }
@@ -360,10 +359,7 @@ display_bfd (bfd *abfd)
   bfd_nonfatal (bfd_get_filename (abfd));
 
   if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
-    {
-      list_matching_formats (matching);
-      free (matching);
-    }
+    list_matching_formats (matching);
 
   return_code = 3;
 }
diff --git a/binutils/srconv.c b/binutils/srconv.c
index 6fc98bc..d017edf 100644
--- a/binutils/srconv.c
+++ b/binutils/srconv.c
@@ -1828,10 +1828,7 @@ main (int ac, char **av)
       bfd_nonfatal (input_file);
 
       if (bfd_get_error () == bfd_error_file_ambiguously_recognized)
-	{
-	  list_matching_formats (matching);
-	  free (matching);
-	}
+	list_matching_formats (matching);
       exit (1);
     }
 
diff --git a/ld/ldlang.c b/ld/ldlang.c
index f10557a..839535b 100644
--- a/ld/ldlang.c
+++ b/ld/ldlang.c
@@ -3056,7 +3056,11 @@ load_symbols (lang_input_statement_type *entry,
 
       /* See if the emulation has some special knowledge.  */
       if (ldemul_unrecognized_file (entry))
-	return true;
+	{
+	  if (err == bfd_error_file_ambiguously_recognized)
+	    free (matching);
+	  return true;
+	}
 
       if (err == bfd_error_file_ambiguously_recognized)
 	{
@@ -3066,6 +3070,7 @@ load_symbols (lang_input_statement_type *entry,
 		   " matching formats:"), entry->the_bfd);
 	  for (p = matching; *p != NULL; p++)
 	    einfo (" %s", *p);
+	  free (matching);
 	  einfo ("%F\n");
 	}
       else if (err != bfd_error_file_not_recognized