From: akeemting <akeem@jmicron.com>
Date: Thu, 9 Oct 2008 02:50:03 +0000 (-0700)
Subject: jme: Faulty IRQ handle bug fix
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=576b5223e2caa0f19afb8ac17455759c214370ce;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

jme: Faulty IRQ handle bug fix

Fix IRQ handle bug when interrupt mode.

The driver was incorrectly handled and returned IRQ_HANDLED
while the device is not generating the interrupt.
It happened due to faulty determination of interrupt status register.

Found by: "Ethan" <ethanhsiao@jmicron.com>
Fixed by: "akeemting" <akeem@jmicron.com>
Signed-off-by: Guo-Fu Tseng <cooldavid@cooldavid.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/jme.c b/drivers/net/jme.c
index 635f616fd974..3ab2442cd228 100644
--- a/drivers/net/jme.c
+++ b/drivers/net/jme.c
@@ -1463,7 +1463,7 @@ jme_intr(int irq, void *dev_id)
 	/*
 	 * Check if it's really an interrupt for us
 	 */
-	if (unlikely(intrstat == 0))
+	if (unlikely((intrstat & INTR_ENABLE) == 0))
 		return IRQ_NONE;
 
 	/*