Hi Colin,
On 07/20/2017 09:29 AM, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> The fe_status variable s is not initialized meaning it can have any
> random garbage status. This could be problematic if fe->ops.tune is
> false as s is not updated by the call to fe->ops.tune() and a
> subsequent check on the change status will using a garbage value.
> Fix this by initializing s to zero.
>
> Detected by CoverityScan, CID#112887 ("Uninitialized scalar variable")
>
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> drivers/media/dvb-core/dvb_frontend.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
> index e3fff8f64d37..e18ea1508a59 100644
> --- a/drivers/media/dvb-core/dvb_frontend.c
> +++ b/drivers/media/dvb-core/dvb_frontend.c
> @@ -631,7 +631,7 @@ static int dvb_frontend_thread(void *data)
> struct dvb_frontend *fe = data;
> struct dtv_frontend_properties *c = &fe->dtv_property_cache;
> struct dvb_frontend_private *fepriv = fe->frontend_priv;
> - enum fe_status s;
> + enum fe_status s = 0;
0 isn't a valid value for enum fe_status. I think the right fix would be
to add FE_NONE to enum fe_status and then initialize s to that.
thanks,
-- Shuah
> enum dvbfe_algo algo;
> bool re_tune = false;
> bool semheld = false;
>
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