linux-kernel - [PATCH] af9013: add check on af9013_wr

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Message-ID: <20170615204244.GA9150@embeddedgus>
Date:   Thu, 15 Jun 2017 15:42:44 -0500
From:   "Gustavo A. R. Silva" <garsilva@...eddedor.com>
To:     Antti Palosaari <crope@....fi>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <garsilva@...eddedor.com>
Subject: [PATCH] af9013: add check on af9013_wr_regs() return value

Check return value from call to af9013_wr_regs(), so in case of
error print debug message and return.

Addresses-Coverity-ID: 1227035
Signed-off-by: Gustavo A. R. Silva <garsilva@...eddedor.com>
---
 drivers/media/dvb-frontends/af9013.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/dvb-frontends/af9013.c b/drivers/media/dvb-frontends/af9013.c
index 51f942f..dc7ccda 100644
--- a/drivers/media/dvb-frontends/af9013.c
+++ b/drivers/media/dvb-frontends/af9013.c
@@ -608,6 +608,8 @@ static int af9013_set_frontend(struct dvb_frontend *fe)
 
 		ret = af9013_wr_regs(state, 0xae00, coeff_lut[i].val,
 			sizeof(coeff_lut[i].val));
+		if (ret)
+			goto err;
 	}
 
 	/* program frequency control */
-- 
2.5.0