linux-kernel - [PATCH 4.4 049/112] [media] cx231xx: dont return error on success

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Date:   Wed, 26 Oct 2016 14:22:32 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Mauro Carvalho Chehab <mchehab@...pensource.com>
Subject: [PATCH 4.4 049/112] [media] cx231xx: dont return error on success

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Mauro Carvalho Chehab <mchehab@....samsung.com>

commit 1871d718a9db649b70f0929d2778dc01bc49b286 upstream.

The cx231xx_set_agc_analog_digital_mux_select() callers
expect it to return 0 or an error. Returning a positive value
makes the first attempt to switch between analog/digital to fail.

Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/media/usb/cx231xx/cx231xx-avcore.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/media/usb/cx231xx/cx231xx-avcore.c
+++ b/drivers/media/usb/cx231xx/cx231xx-avcore.c
@@ -1264,7 +1264,10 @@ int cx231xx_set_agc_analog_digital_mux_s
 				   dev->board.agc_analog_digital_select_gpio,
 				   analog_or_digital);
 
-	return status;
+	if (status < 0)
+		return status;
+
+	return 0;
 }
 
 int cx231xx_enable_i2c_port_3(struct cx231xx *dev, bool is_port_3)