RE: [patch] intel_telemetry_pltdrv: silence an unintialized variable warning

From: Chakravarty, Souvik K
Date: Mon Apr 18 2016 - 00:29:11 EST


Looks good...thanks Dan.

> -----Original Message-----
> From: Dan Carpenter [mailto:dan.carpenter@xxxxxxxxxx]
> Sent: Friday, April 15, 2016 8:16 PM
> To: Chakravarty, Souvik K <souvik.k.chakravarty@xxxxxxxxx>
> Cc: Darren Hart <dvhart@xxxxxxxxxxxxx>; platform-driver-
> x86@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; kernel-
> janitors@xxxxxxxxxxxxxxx
> Subject: [patch] intel_telemetry_pltdrv: silence an unintialized variable
> warning
>
> Presumably "pss_period" and "ioss_period" can't both be zero, but this
> function is never called so we can't infer that using static analysis alone.
>
> Let's silence the warning by setting "ret" to zero.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
> diff --git a/drivers/platform/x86/intel_telemetry_pltdrv.c
> b/drivers/platform/x86/intel_telemetry_pltdrv.c
> index 397119f..781bd10 100644
> --- a/drivers/platform/x86/intel_telemetry_pltdrv.c
> +++ b/drivers/platform/x86/intel_telemetry_pltdrv.c
> @@ -659,7 +659,7 @@ static int telemetry_plt_update_events(struct
> telemetry_evtconfig pss_evtconfig, static int
> telemetry_plt_set_sampling_period(u8 pss_period, u8 ioss_period) {
> u32 telem_ctrl = 0;
> - int ret;
> + int ret = 0;
>
> mutex_lock(&(telm_conf->telem_lock));
> if (ioss_period) {