rtlwifi: rtl8192cu: Fix NULL dereference BUG when using new_id
commit 957f4aca upstream. When the new_id entry in /sysfs is used for a foreign USB device, rtlwifi BUGS with a NULL pointer dereference because the per-driver configuration data is not available. The probe function has been restructured as suggested by Ben Hutchings <bhutchings@solarflare.com>. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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