Hello,

	MAINTAINERS says riscom8 is orphaned so not sure
if anybody cares. Spotted this when playing with modprobe
walking /lib/modules/`uname -r`/kernel in a loop ;)

BUG: sleeping function called from invalid context at kernel/mutex.c:86
in_atomic():0, irqs_disabled():1
 [<c0104542>] show_trace_log_lvl+0x1a/0x30
 [<c01050d0>] show_trace+0x12/0x14
 [<c010515b>] dump_stack+0x15/0x17
 [<c0112bd4>] __might_sleep+0xa8/0xae
 [<c04148ff>] mutex_lock+0x15/0x1f
 [<c015f82f>] __unregister_chrdev_region+0x1a/0x85
 [<c015f8f7>] unregister_chrdev_region+0x2f/0x3e
 [<c029c710>] tty_unregister_driver+0x30/0x100
 [<df082011>] rc_release_drivers+0x11/0x20 [riscom8]
 [<df08960c>] riscom8_init_module+0x539/0x57a [riscom8]
 [<c01345c2>] sys_init_module+0x11b/0x167e
 [<c0103ee6>] sysenter_past_esp+0x5f/0x85
 =======================

Regards,

	Mariusz
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