X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fisdn%2Ficn%2Ficn.c;h=730bbd07ebc7ca2e842e5cde6080fdd466203027;hb=7172c64a7cee4dfa95864f49c914f7ea8cf497c8;hp=6649f8bc99512247cdbfb6142dbfcce40f0669b0;hpb=3967a72a825e44bff5d10f516e90b6f59f59e599;p=linux-2.6.git

diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c
index 6649f8bc9..730bbd07e 100644
--- a/drivers/isdn/icn/icn.c
+++ b/drivers/isdn/icn/icn.c
@@ -1010,7 +1010,8 @@ icn_readstatus(u_char __user *buf, int len, icn_card * card)
 	for (p = buf, count = 0; count < len; p++, count++) {
 		if (card->msg_buf_read == card->msg_buf_write)
 			return count;
-		put_user(*card->msg_buf_read++, p);
+		if (put_user(*card->msg_buf_read++, p))
+			return -EFAULT;
 		if (card->msg_buf_read > card->msg_buf_end)
 			card->msg_buf_read = card->msg_buf;
 	}