From: Hayes Wang
Date: Thu, 9 Oct 2014 07:59:35 +
> If I use the rtnl_lock(), I get a dead lock when enabling autosuspend.
>
> Case 1:
>autosuspend before calling open.
>rtnl_lock()
>call open
>try to autoresume and rtl8152_resume is called.
>dead lock occurs.
>
> Case 2
David Miller [mailto:da...@davemloft.net]
> Sent: Thursday, October 09, 2014 3:45 AM
[..]
> I think a much simpler fix is to take rtnl_lock() in the workqueue
> function and suspend/resume ops.
>
> Every other place you are adding the mutex already holds the RTNL
> mutex.
If I use the rtnl_lock
From: Hayes Wang
Date: Tue, 7 Oct 2014 13:36:30 +0800
> Use mutex to avoid that the serial hw settings would be interrupted
> by other settings. Although there is no problem now, it makes the
> driver more safe.
>
> Signed-off-by: Hayes Wang
I think a much simpler fix is to take rtnl_lock() in
Use mutex to avoid that the serial hw settings would be interrupted
by other settings. Although there is no problem now, it makes the
driver more safe.
Signed-off-by: Hayes Wang
---
drivers/net/usb/r8152.c | 69 +++--
1 file changed, 67 insertions(+),
