patch-2.4.21 linux-2.4.21/drivers/isdn/eicon/linchr.c

• Lines: 23
• Date: 2003-06-13 07:51:34.000000000 -0700
• Orig file: linux-2.4.20/drivers/isdn/eicon/linchr.c
• Orig date: 2001-09-30 12:26:05.000000000 -0700

diff -urN linux-2.4.20/drivers/isdn/eicon/linchr.c linux-2.4.21/drivers/isdn/eicon/linchr.c
@@ -154,17 +154,17 @@
 	klog_t *pHeadItem;
 
 	if (BufferSize < sizeof(klog_t))
-	{
-		printk(KERN_WARNING "Divas: Divalog buffer specifed a size that is too small (%d - %d required)\n",
-			BufferSize, sizeof(klog_t));
 		return -EIO;
-	}
 
 	pHeadItem = (klog_t *) DivasLogFifoRead();
 
 	if (pHeadItem)
 	{
-		memcpy(pClientLogBuffer, pHeadItem, sizeof(klog_t));
+		if(copy_to_user(pClientLogBuffer, pHeadItem, sizeof(klog_t)))
+		{
+			kfree(pHeadItem);
+			return -EFAULT;
+		}
 		kfree(pHeadItem);
 		return sizeof(klog_t);
 	}