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oprofile, x86: Fix wrapping bug in op_x86_get_ctrl()

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commit 4400910508 upstream.

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>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Carpenter
2012-10-10 10:18:35 +03:00
committed by Greg Kroah-Hartman
parent c303f82bbe
commit ef9fccff2f
1 changed files with 1 additions and 1 deletions
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2
arch/x86/oprofile/nmi_int.c
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@@ -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;
}