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Subject: media: cx231xx: fail probe if i2c_add_adapter fails
Author:  Peter Rosin <p...@axentia.se>
Date:    Mon Jul 31 09:38:50 2017 -0400

While at it, change the type of the previously always-zero i2c_rc
member to int, matching the returned type from i2c_add_adapter.

Signed-off-by: Peter Rosin <p...@axentia.se>
Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mche...@s-opensource.com>

 drivers/media/usb/cx231xx/cx231xx-i2c.c | 2 +-
 drivers/media/usb/cx231xx/cx231xx.h     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

---

diff --git a/drivers/media/usb/cx231xx/cx231xx-i2c.c 
b/drivers/media/usb/cx231xx/cx231xx-i2c.c
index 8d95b1154e12..3a0c45ffd40f 100644
--- a/drivers/media/usb/cx231xx/cx231xx-i2c.c
+++ b/drivers/media/usb/cx231xx/cx231xx-i2c.c
@@ -538,7 +538,7 @@ int cx231xx_i2c_register(struct cx231xx_i2c *bus)
 
        bus->i2c_adap.algo_data = bus;
        i2c_set_adapdata(&bus->i2c_adap, &dev->v4l2_dev);
-       i2c_add_adapter(&bus->i2c_adap);
+       bus->i2c_rc = i2c_add_adapter(&bus->i2c_adap);
 
        if (0 != bus->i2c_rc)
                dev_warn(dev->dev,
diff --git a/drivers/media/usb/cx231xx/cx231xx.h 
b/drivers/media/usb/cx231xx/cx231xx.h
index 986c64ba5b56..27ee035f9f84 100644
--- a/drivers/media/usb/cx231xx/cx231xx.h
+++ b/drivers/media/usb/cx231xx/cx231xx.h
@@ -476,7 +476,7 @@ struct cx231xx_i2c {
 
        /* i2c i/o */
        struct i2c_adapter i2c_adap;
-       u32 i2c_rc;
+       int i2c_rc;
 
        /* different settings for each bus */
        u8 i2c_period;

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