linux-kernel - [STAGING] fix verification of memory area

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Message-ID: <4980CAA9.1060301@gmail.com>
Date:	Wed, 28 Jan 2009 22:14:17 +0100
From:	Roel Kluin <roel.kluin@...il.com>
To:	Greg KH <gregkh@...e.de>
CC:	lkml <linux-kernel@...r.kernel.org>
Subject: [STAGING] fix verification of memory area

fix verification of memory area

Signed-off-by: Roel Kluin <roel.kluin@...il.com>
---
diff --git a/drivers/staging/poch/poch.c b/drivers/staging/poch/poch.c
index ec343ef..0d111dd 100644
--- a/drivers/staging/poch/poch.c
+++ b/drivers/staging/poch/poch.c
@@ -1026,7 +1026,7 @@ static int poch_ioctl(struct inode *inode, struct file *filp,
 		}
 		break;
 	case POCH_IOC_GET_COUNTERS:
-		if (access_ok(VERIFY_WRITE, argp, sizeof(struct poch_counters)))
+		if (!access_ok(VERIFY_WRITE, argp, sizeof(struct poch_counters)))
 			return -EFAULT;
 
 		spin_lock_irq(&channel->counters_lock);
--
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