diff --git a/gas/ChangeLog b/gas/ChangeLog
index 5c1e97d8cb..36a07e23ed 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,9 @@
+2013-03-14  Nick Clifton  <nickc@redhat.com>
+
+	PR gas/15273
+	* config/tc-arm.c (do_co_reg): Do not call check_obsolete with a
+	NULL message, instead just check ARM_CPU_IS_ANY directly.
+
 2013-03-14  Nick Clifton  <nickc@redhat.com>
 
 	PR gas/15212
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index ff8505c8b0..27d236161b 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -7828,7 +7828,7 @@ do_co_reg (void)
 	    && inst.operands[4].reg == r->crm
 	    && inst.operands[5].imm == r->opc2)
 	  {
-	    if (!check_obsolete (&r->obsoleted, r->obs_msg)
+	    if (! ARM_CPU_IS_ANY (cpu_variant)
 	        && warn_on_deprecated
 		&& ARM_CPU_HAS_FEATURE (cpu_variant, r->deprecated))
 	      as_warn ("%s", r->dep_msg);