From 4aba41ea8bdc1b475861f5e5c1649ab20251090c Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 14 Oct 2008 11:29:06 +0100 Subject: [PATCH] 8250: Fix lock warning (and possible crash) Splitting the 8250 code back up to avoid a clash with the NR_IRQS removal patch introduced a last minute bug. Put back the additional needed lines for the old lock init Signed-off-by: Alan Cox [ Ingo also reports that this can cause a spontaneous reboot crash with certain configs, and sends in an identical patch ] Tested-by: Kamalesh Babulal Signed-off-by: Linus Torvalds --- drivers/serial/8250.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index d4104a3bbe8..d3ca7d32abe 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -2969,6 +2969,9 @@ static int __init serial8250_init(void) "%d ports, IRQ sharing %sabled\n", nr_uarts, share_irqs ? "en" : "dis"); + for (i = 0; i < NR_IRQS; i++) + spin_lock_init(&irq_lists[i].lock); + #ifdef CONFIG_SPARC ret = sunserial_register_minors(&serial8250_reg, UART_NR); #else -- 2.11.4.GIT