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From: Shuah Khan <shuah.kh@samsung.com>
To: "Mauro Carvalho Chehab (m.chehab@samsung.com)"
	<m.chehab@samsung.com>,
	Linux Media Mailing List <linux-media@vger.kernel.org>,
	crope@iki.fi
Cc: Shuah Khan <shuah.kh@samsung.com>
Subject: fix PCTV 461e tuner I2C binding
Date: Mon, 07 Jul 2014 17:34:21 -0600	[thread overview]
Message-ID: <53BB2E7D.30300@samsung.com> (raw)

Mauro/Antti,

I have been looking at the following commit to

drivers/media/usb/em28xx/em28xx-dvb.c

a83b93a7480441a47856dc9104bea970e84cda87

+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -1630,6 +1630,7 @@ static int em28xx_dvb_resume(struct em28xx *dev)
         em28xx_info("Resuming DVB extension");
         if (dev->dvb) {
                 struct em28xx_dvb *dvb = dev->dvb;
+               struct i2c_client *client = dvb->i2c_client_tuner;

                 if (dvb->fe[0]) {
                         ret = dvb_frontend_resume(dvb->fe[0]);
@@ -1640,6 +1641,15 @@ static int em28xx_dvb_resume(struct em28xx *dev)
                         ret = dvb_frontend_resume(dvb->fe[1]);
                         em28xx_info("fe1 resume %d", ret);
                 }
+               /* remove I2C tuner */
+               if (client) {
+                       module_put(client->dev.driver->owner);
+                       i2c_unregister_device(client);
+               }
+
+               em28xx_unregister_dvb(dvb);
+               kfree(dvb);
+               dev->dvb = NULL;
         }

Why are we unregistering i2c devices and dvb in this resume path?
Looks incorrect to me.

-- Shuah

-- 
Shuah Khan
Senior Linux Kernel Developer - Open Source Group
Samsung Research America(Silicon Valley)
shuah.kh@samsung.com | (970) 672-0658

             reply	other threads:[~2014-07-07 23:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-07 23:34 Shuah Khan [this message]
2014-07-08  3:45 ` fix PCTV 461e tuner I2C binding Antti Palosaari
2014-07-08 13:55   ` Shuah Khan
2014-07-08 18:51     ` Antti Palosaari
2014-07-08 21:39       ` Shuah Khan

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