Re: dibusb-common.c FE_HAS_LOCK problem

[grafgrimm77@gmx.de]

Am Mon, 23 Nov 2009 14:19:10 +0100 (CET)
schrieb Patrick Boettcher <pboettcher@kernellabs.com>:

> On Mon, 23 Nov 2009, Patrick Boettcher wrote:
> 
> > On Mon, 23 Nov 2009, grafgrimm77@gmx.de wrote:
> >> [..]
> >> ----- hello stupid I2C access ----
> >> Pid: 255, comm: khubd Tainted: P       A   2.6.31.6 #1
> >> Call Trace:
> >> [<ffffffffa0042292>] ? dibusb_i2c_xfer+0xe2/0x130 [dvb_usb_dibusb_common]
> >> [<ffffffff81341dc1>] ? i2c_transfer+0x91/0xe0
> >> [<ffffffffa0059081>] ? dib3000_write_reg+0x51/0x70 [dib3000mb]
> >> [<ffffffffa00855c9>] ? dvb_pll_attach+0xa9/0x238 [dvb_pll]
> >> [..]
> >
> > Voila.
> >
> > This is the access with makes the dvb-pll-driver not create the tuner driver.
> >
> > This is (I forgot the correct name) read-without-write-i2caccess. It is bad 
> > handled by the dibusb-driver and it can destroy the eeprom on the USB side.
> >
> > Please try whether the attached patch fixes the whole situation for you.
> >
> > If so, please send back a line like this:
> >
> > Tested-by: Your name <email>
> 
> The patch attached.
> 
> --
> 
> Patrick Boettcher - Kernel Labs
> http://www.kernellabs.com/

Hi Patrick, 

your patch [dibusb-common-fix  text/PLAIN (1054 bytes)] works here. 

Tested-by: Mario Bachmann <grafgrimm77@gmx.de>

Mario