Bug 26572

Summary:	rmmod em28xx or unplugging em28xx tv adapter problem
Product:	v4l-dvb	Reporter:	Manuel (kernelbugs)
Component:	em28xx	Assignee:	schaefer.frank
Status:	RESOLVED CODE_FIX
Severity:	normal	CC:	alan, schaefer.frank
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	2.6.37	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	dmesg output my kernel config

Description Manuel 2011-01-12 11:37:45 UTC

hello,

since i am using 2.6.37 there is a problem with the em28xx driver.
seems to be a bug in the new kernel, cause there wasn't a problem with kernels up to 2.6.36.

the error appears on unplugging the usb device or just on rmmod the em28xx driver.

the stack trace is attached.

if i try to reload the em28xx driver after this failure, the system is freezing.

Comment 1 Manuel 2011-01-12 11:38:46 UTC

Created attachment 43302 [details]
dmesg output

the output of dmesg

Comment 2 Manuel 2011-01-12 11:44:08 UTC

Created attachment 43312 [details]
my kernel config

my kernel config

(big kernel lock is actually off in my kernel, but setting it on again doesn't fix the problem!)

Comment 3 Manuel 2011-01-12 11:49:39 UTC

oh sorry,
i think the bug has to be moved to video4linux / em28xx

Comment 4 schaefer.frank 2013-01-22 18:55:16 UTC

Resolved with commit 05fe2175cf87da8a5475aed422bd636475ab0412
"em28xx: refactor the code in em28xx_usb_disconnect()".