X-Git-Url: http://git.onelab.eu/?p=linux-2.6.git;a=blobdiff_plain;f=drivers%2Fisdn%2Fpcbit%2Fdrv.c;fp=drivers%2Fisdn%2Fpcbit%2Fdrv.c;h=6ead5e1508b705fd682c28c2a57c9a581ab5e611;hp=94f21486bb24d667b4c22b29e2c507e30262919b;hb=7172c64a7cee4dfa95864f49c914f7ea8cf497c8;hpb=3967a72a825e44bff5d10f516e90b6f59f59e599

diff --git a/drivers/isdn/pcbit/drv.c b/drivers/isdn/pcbit/drv.c
index 94f21486b..6ead5e150 100644
--- a/drivers/isdn/pcbit/drv.c
+++ b/drivers/isdn/pcbit/drv.c
@@ -725,23 +725,27 @@ static int pcbit_stat(u_char __user *buf, int len, int driver, int channel)
 
 	if (stat_st < stat_end)
 	{
-		copy_to_user(buf, statbuf + stat_st, len);
+		if (copy_to_user(buf, statbuf + stat_st, len))
+			return -EFAULT;
 		stat_st += len;	   
 	}
 	else
 	{
 		if (len > STATBUF_LEN - stat_st)
 		{
-			copy_to_user(buf, statbuf + stat_st, 
-				       STATBUF_LEN - stat_st);
-			copy_to_user(buf, statbuf, 
-				       len - (STATBUF_LEN - stat_st));
+			if (copy_to_user(buf, statbuf + stat_st,
+				       STATBUF_LEN - stat_st))
+				return -EFAULT;
+			if (copy_to_user(buf, statbuf,
+				       len - (STATBUF_LEN - stat_st)))
+				return -EFAULT;
 
 			stat_st = len - (STATBUF_LEN - stat_st);
 		}
 		else
 		{
-			copy_to_user(buf, statbuf + stat_st, len);
+			if (copy_to_user(buf, statbuf + stat_st, len))
+				return -EFAULT;
 
 			stat_st += len;