Messages in this thread | | | Date | Sat, 30 Nov 2019 07:54:15 +0100 | From | Mauro Carvalho Chehab <> | Subject | Re: [PATCH] media: dvb_dummy_fe: Add error messages in case of attach failure |
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Em Wed, 6 Nov 2019 22:37:45 -0300 "Daniel W. S. Almeida" <dwlsalmeida@gmail.com> escreveu:
> From: "Daniel W. S. Almeida" <dwlsalmeida@gmail.com> > > Complain if the attach functions fail, for any reason. This is helpful > when debugging. > > Suggested-by: Shuah Khan <skhan@linuxfoundation.org> > Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com>
Looks OK to me.
> --- > drivers/media/dvb-frontends/dvb_dummy_fe.c | 18 +++++++++++++++--- > 1 file changed, 15 insertions(+), 3 deletions(-) > > diff --git a/drivers/media/dvb-frontends/dvb_dummy_fe.c b/drivers/media/dvb-frontends/dvb_dummy_fe.c > index 4db679cb70ad..ca86857c3667 100644 > --- a/drivers/media/dvb-frontends/dvb_dummy_fe.c > +++ b/drivers/media/dvb-frontends/dvb_dummy_fe.c > @@ -114,12 +114,16 @@ struct dvb_frontend* dvb_dummy_fe_ofdm_attach(void) > /* allocate memory for the internal state */ > state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); > if (!state) > - return NULL; > + goto err; > > /* create dvb_frontend */ > memcpy(&state->frontend.ops, &dvb_dummy_fe_ofdm_ops, sizeof(struct dvb_frontend_ops)); > state->frontend.demodulator_priv = state; > return &state->frontend; > + > +err: > + pr_err("%s: DVB Dummy frontend driver attach failed\n", __func__); > + return NULL; > } > > static const struct dvb_frontend_ops dvb_dummy_fe_qpsk_ops; > @@ -131,12 +135,16 @@ struct dvb_frontend *dvb_dummy_fe_qpsk_attach(void) > /* allocate memory for the internal state */ > state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); > if (!state) > - return NULL; > + goto err; > > /* create dvb_frontend */ > memcpy(&state->frontend.ops, &dvb_dummy_fe_qpsk_ops, sizeof(struct dvb_frontend_ops)); > state->frontend.demodulator_priv = state; > return &state->frontend; > + > +err: > + pr_err("%s: DVB Dummy frontend driver attach failed\n", __func__); > + return NULL; > } > > static const struct dvb_frontend_ops dvb_dummy_fe_qam_ops; > @@ -148,12 +156,16 @@ struct dvb_frontend *dvb_dummy_fe_qam_attach(void) > /* allocate memory for the internal state */ > state = kzalloc(sizeof(struct dvb_dummy_fe_state), GFP_KERNEL); > if (!state) > - return NULL; > + goto err; > > /* create dvb_frontend */ > memcpy(&state->frontend.ops, &dvb_dummy_fe_qam_ops, sizeof(struct dvb_frontend_ops)); > state->frontend.demodulator_priv = state; > return &state->frontend; > + > +err: > + pr_err("%s: DVB Dummy frontend driver attach failed\n", __func__); > + return NULL; > } > > static const struct dvb_frontend_ops dvb_dummy_fe_ofdm_ops = {
Cheers, Mauro
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