linux-kernel - [PATCH] 8250: Fix lock warning

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Message-ID: <20081014102858.20707.8847.stgit@localhost.localdomain>
Date:	Tue, 14 Oct 2008 11:29:06 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: [PATCH] 8250: Fix lock warning

(Resend with signed off by)

From: Alan Cox <alan@...hat.com>

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 <alan@...hat.com>
---

 drivers/serial/8250.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)


diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index d4104a3..d3ca7d3 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

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