1 files changed, 13 insertions, 1 deletions

diff --git a/arch/x86/oprofile/op_model_p4.c b/arch/x86/oprofile/op_model_p4.c
index 7cc80df330d5..182558dd5515 100644
--- a/arch/x86/oprofile/op_model_p4.c
+++ b/arch/x86/oprofile/op_model_p4.c
@@ -404,7 +404,7 @@ static void p4_shutdown(struct op_msrs const * const msrs)
         }
 }
 
-static void p4_fill_in_addresses(struct op_msrs * const msrs)
+static int p4_fill_in_addresses(struct op_msrs * const msrs)
 {
         unsigned int i;
         unsigned int addr, cccraddr, stag;
@@ -486,6 +486,18 @@ static void p4_fill_in_addresses(struct op_msrs * const msrs)
                         msrs->controls[i++].addr = MSR_P4_CRU_ESCR5;
                 }
         }
+
+        for (i = 0; i < num_counters; ++i) {
+                if (!counter_config[i].enabled)
+                        continue;
+                if (msrs->controls[i].addr)
+                        continue;
+                op_x86_warn_reserved(i);
+                p4_shutdown(msrs);
+                return -EBUSY;
+        }
+
+        return 0;
 }