powerpc/perf/hv-24x7: Add missing put_cpu_var()

Add missing put_cpu_var() for 24x7 requests. This went missing in
commit f34b6c7 (3.18-rc3).

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index 46be032..ead8878 100644 (file)
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -1096,7 +1096,7 @@ static unsigned long single_24x7_request(struct perf_event *event, u64 *count)
 
        ret = add_event_to_24x7_request(event, request_buffer);
        if (ret)
-               return ret;
+               goto out;
 
        ret = make_24x7_request(request_buffer, result_buffer);
        if (ret) {
@@ -1109,6 +1109,8 @@ static unsigned long single_24x7_request(struct perf_event *event, u64 *count)
        *count = be64_to_cpu(resb->elements[0].element_data[0]);
 
 out:
+       put_cpu_var(hv_24x7_reqb);
+       put_cpu_var(hv_24x7_resb);
        return ret;
 }