From: Olli Salonen <olli.salonen@iki.fi>
Date: Tue, 5 May 2015 16:54:16 +0000 (-0300)
Subject: [media] si2168: add I2C error handling
X-Git-Tag: v4.2-rc8~12^2~390
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7adf99d20ce0e96a70755f452e3a63824b14060f;p=platform%2Fkernel%2Flinux-exynos.git

[media] si2168: add I2C error handling

Return error from si2168_cmd_execute in case the demodulator returns an
error.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
---

diff --git a/drivers/media/dvb-frontends/si2168.c b/drivers/media/dvb-frontends/si2168.c
index 29a5936..b68ab34 100644
--- a/drivers/media/dvb-frontends/si2168.c
+++ b/drivers/media/dvb-frontends/si2168.c
@@ -60,6 +60,12 @@ static int si2168_cmd_execute(struct i2c_client *client, struct si2168_cmd *cmd)
 				jiffies_to_msecs(jiffies) -
 				(jiffies_to_msecs(timeout) - TIMEOUT));
 
+		/* error bit set? */
+		if ((cmd->args[0] >> 6) & 0x01) {
+			ret = -EREMOTEIO;
+			goto err_mutex_unlock;
+		}
+
 		if (!((cmd->args[0] >> 7) & 0x01)) {
 			ret = -ETIMEDOUT;
 			goto err_mutex_unlock;