diff options
author | Alan Stern <stern@rowland.harvard.edu> | 2012-05-07 11:20:06 -0400 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-05-07 12:59:02 -0700 |
commit | 5cbe61c5aff0a8ada691eb8b07dbfb55c303f640 (patch) | |
tree | 7cacf1d68cbc681faa658d0fb15e035186c79908 /drivers/vlynq | |
parent | 23063b378de734383c9f42de770b01cd661cd9b4 (diff) |
usb-serial: ftdi_sio: fix oops during autosuspend
This patch (as1550) fixes a bug in the usb-serial core that affects
the ftdi_sio driver and most likely others as well. The core
implements suspend and resume routines, but it doesn't store pointers
to those routines in the usb_driver structures that it registers,
even though it does set those drivers' supports_autosuspend flag. The
end result is that when one of these devices is autosuspended, we try
to call through a NULL pointer.
The patch fixes the problem by setting the suspend and resume method
pointers to the appropriate routines in the USB serial core, along
with the supports_autosuspend field, in each driver as it is
registered.
This should be back-ported to all the stable kernels that have the new
usb_serial_register_drivers() interface.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Frank Schäfer <schaefer.frank@gmx.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/vlynq')
0 files changed, 0 insertions, 0 deletions