From: Frank Mori Hess <fmhess@speakeasy.net>
Date: Sun, 18 Jul 2004 00:40:18 +0000 (+0000)
Subject: bug fix from  zharkov@vista-control.com (Eugene Zharkov)
X-Git-Tag: r0_7_69~20
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=703f695bcb4ae4d02fa28ccf8a5284c3dc75b4a2;p=comedi.git

bug fix from  zharkov@vista-control.com (Eugene Zharkov)
---

diff --git a/comedi/drivers/ni_6527.c b/comedi/drivers/ni_6527.c
index a2d9b7b6..1b94f0cf 100644
--- a/comedi/drivers/ni_6527.c
+++ b/comedi/drivers/ni_6527.c
@@ -204,8 +204,8 @@ static irqreturn_t ni6527_interrupt(int irq, void *d, struct pt_regs *regs)
 	unsigned int status;
 
 	status = readb(dev->iobase + Change_Status);
-	if(!status&MasterInterruptStatus)return IRQ_NONE;
-	if(!status&EdgeStatus)return IRQ_NONE;
+	if((status & MasterInterruptStatus) == 0) return IRQ_NONE;
+	if((status & EdgeStatus) == 0) return IRQ_NONE;
 
 	writeb(ClrEdge | ClrOverflow, dev->iobase + Clear_Register);