diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2012-10-10 10:18:35 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-28 10:02:11 -0700 |
| commit | ef9fccff2f6108bd5128113d64d260d3f075eb16 (patch) | |
| tree | bdae99a86ddc7daa6126e4d21db830fcdfbd6673 /arch | |
| parent | c303f82bbe250dc60ef94d1f282a49118fabcaed (diff) | |
oprofile, x86: Fix wrapping bug in op_x86_get_ctrl()
commit 44009105081b51417f311f4c3be0061870b6b8ed 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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/oprofile/nmi_int.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index 68894fdc034b..a00c588b69d4 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; } |