HID: u2fzero: fail probe if not using USB transport
authorJiri Kosina <jkosina@suse.cz>
Wed, 17 Apr 2019 14:39:43 +0000 (16:39 +0200)
committerJiri Kosina <jkosina@suse.cz>
Wed, 17 Apr 2019 14:39:43 +0000 (16:39 +0200)
commit59579a8d173ea727561868bbe989f83b2d24216f
tree616b51771e03df1209e3570ccd59213d8a707cda
parente252e0e0028167ea3d1eafa99c2ff9f62c444b0a
HID: u2fzero: fail probe if not using USB transport

u2fzero driver is USB-only. Therefore we have to give up in ->probe()
callback in case we're called with non-USB transport driver bound,
otherwise the kernel will crash trying to use USBHID API on a non-USB
transport.

Fixes: 42337b9d4d958("HID: add driver for U2F Zero built-in LED and RNG")
Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
drivers/hid/hid-u2fzero.c