2013-11-26  Luis Machado  <lgustavo@codesourcery.com>

	gdb/testsuite/
	* gdb.base/callfuncs.c (main): Assign malloc's return value
	and free it afterwards.
	* gdb.base/charset-malloc.c (malloc_stub): Likewise.
	* gdb.base/printcmds.c (main): Likewise.
	* gdb.base/randomize.c (main): Free "p".
	* gdb.base/setvar.c (dummy): Assign malloc's return value
	and free it afterwards.

diff --git a/gdb/testsuite/gdb.base/callfuncs.c b/gdb/testsuite/gdb.base/callfuncs.c
index 0d76ee9..3872f5c 100644
--- a/gdb/testsuite/gdb.base/callfuncs.c
+++ b/gdb/testsuite/gdb.base/callfuncs.c
@@ -652,9 +652,13 @@ voidfunc (void)
 
 int main ()
 {
-  malloc(1);
+  void *p = malloc (1);
   t_double_values(double_val1, double_val2);
   t_structs_c(struct_val1);
+
+  if (p != NULL)
+    free (p);
+
   return 0 ;
 }
 
diff --git a/gdb/testsuite/gdb.base/charset-malloc.c b/gdb/testsuite/gdb.base/charset-malloc.c
index 58242a2..54a9bd6 100644
--- a/gdb/testsuite/gdb.base/charset-malloc.c
+++ b/gdb/testsuite/gdb.base/charset-malloc.c
@@ -31,5 +31,8 @@ malloc_stub (void)
 {
   /* charset.exp wants to allocate memory for constants.  So make sure malloc
      gets linked into the program.  */
-  malloc (1);
+  void *p = malloc (1);
+
+  if (p != NULL)
+    free (p);
 }
diff --git a/gdb/testsuite/gdb.base/printcmds.c b/gdb/testsuite/gdb.base/printcmds.c
index d80c13d..806f421 100644
--- a/gdb/testsuite/gdb.base/printcmds.c
+++ b/gdb/testsuite/gdb.base/printcmds.c
@@ -218,10 +218,13 @@ char invalid_RRR[] = "aaaaaaaaaaaaaaaaaaaa"
 
 int main ()
 {
-  malloc(1);
+  void *p = malloc (1);
 
   /* Prevent AIX linker from removing variables.  */
   return ctable1[0] + ctable2[0] + int1dim[0] + int2dim[0][0]
     + int3dim[0][0][0] + int4dim[0][0][0][0] + teststring[0] +
       *parrays -> array1 + a1[0] + a2[0];
+
+  if (p != NULL)
+    free (p);
 }
diff --git a/gdb/testsuite/gdb.base/randomize.c b/gdb/testsuite/gdb.base/randomize.c
index 6a65663..127a4c7 100644
--- a/gdb/testsuite/gdb.base/randomize.c
+++ b/gdb/testsuite/gdb.base/randomize.c
@@ -24,5 +24,8 @@ int main()
 
   p = malloc (1);
 
+  if (p != NULL)
+    free (p);
+
   return 0; /* print p */
 }
diff --git a/gdb/testsuite/gdb.base/setvar.c b/gdb/testsuite/gdb.base/setvar.c
index 3a80b22..0022dc0 100644
--- a/gdb/testsuite/gdb.base/setvar.c
+++ b/gdb/testsuite/gdb.base/setvar.c
@@ -204,7 +204,7 @@ dummy ()
 {
   /* setvar.exp wants to allocate memory for constants.  So make sure malloc
      gets linked into the program.  */
-  malloc (1);
+  void *p = malloc (1);
 
   /* Some linkers (e.g. on AIX) remove unreferenced variables,
      so make sure to reference them. */
@@ -278,4 +278,7 @@ dummy ()
   sef.field = s1;
   uef.field = u1;
 #endif
+
+  if (p != NULL)
+    free (p);
 }