From: Gertjan van Wingerde <gwingerde@gmail.com>
Date: Mon, 18 Apr 2011 13:32:13 +0000 (+0200)
Subject: rt2x00: Allow dynamic addition of PCI/USB IDs.
X-Git-Tag: v3.0-rc1~377^2~256^2^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e01ae27f8ce6bd3ee26ef33c704f62449ce8233b;p=pandora-kernel.git

rt2x00: Allow dynamic addition of PCI/USB IDs.

Both USB and PCI drivers allow a system administrator to dynamically add
USB/PCI IDs to the device table that a driver supports via the
/sys/bus/{usb,pci,pci_express}/drivers/<driver-name>/new_id files.

However, for the rt2x00 drivers using this method currently crashes the
system with a NULL pointer failure.

This is due to the set-up of rt2x00 where the probe functions require a
rt2x00_ops structure in the driver_info field of the probed device. As
this field is empty for the dynamically added devices this fails for
these devices.

Fix this by introducing driver-specific probe wrappers that do nothing
but calling the bus-specific probe functions with the rt2x00_ops structure
as an argument, rather than depending on the driver_info field.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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