oprofile, x86: Fix wrapping bug in op_x86_get_ctrl()

The "event" variable is a u16 so the shift will always wrap to zero
making the line a no-op.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: <stable@vger.kernel.org> v2.6.32..
Signed-off-by: Robert Richter <robert.richter@amd.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index 26b8a8514ee5..48768df2471a 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -55,7 +55,7 @@ u64 op_x86_get_ctrl(struct op_x86_model_spec const *model,
         val |= counter_config->extra;
         event &= model->event_mask ? model->event_mask : 0xFF;
         val |= event & 0xFF;
-        val |= (event & 0x0F00) << 24;
+        val |= (u64)(event & 0x0F00) << 24;
 
         return val;
 }