X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fisdn%2Fcapi%2Fcapidrv.c;fp=drivers%2Fisdn%2Fcapi%2Fcapidrv.c;h=b6f9476c0501d75abd98916098726d070c1436be;hb=7172c64a7cee4dfa95864f49c914f7ea8cf497c8;hp=d10c8b82e6aaeac3587361efb531cb92de5ef150;hpb=3967a72a825e44bff5d10f516e90b6f59f59e599;p=linux-2.6.git

diff --git a/drivers/isdn/capi/capidrv.c b/drivers/isdn/capi/capidrv.c
index d10c8b82e..b6f9476c0 100644
--- a/drivers/isdn/capi/capidrv.c
+++ b/drivers/isdn/capi/capidrv.c
@@ -1907,7 +1907,8 @@ static int if_readstat(u8 __user *buf, int len, int id, int channel)
 	}
 
 	for (p=buf, count=0; count < len; p++, count++) {
-		put_user(*card->q931_read++, p);
+		if (put_user(*card->q931_read++, p))
+			return -EFAULT;
 	        if (card->q931_read > card->q931_end)
 	                card->q931_read = card->q931_buf;
 	}