It doesn't seem this spinlock was properly initialized. This bug was
introduced by commit
7a410e8d4d97457c8c381e2de9cdc7bd3306badc.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
socket = &vrc4171_sockets[slot];
socket->csc_irq = search_nonuse_irq();
socket->io_irq = search_nonuse_irq();
socket = &vrc4171_sockets[slot];
socket->csc_irq = search_nonuse_irq();
socket->io_irq = search_nonuse_irq();
+ spin_lock_init(&socket->lock);