[PATCH 2/4] irda check error on memcpy_fromiovec

[Chris Wright <chrisw@xxxxxxxx>]

Check the return value on memcpy_fromiovec().


===== net/irda/af_irda.c 1.47 vs edited =====
--- 1.47/net/irda/af_irda.c     Tue Nov  4 16:29:43 2003
+++ edited/net/irda/af_irda.c   Fri Dec  5 17:29:04 2003
@@ -1307,7 +1307,11 @@
        skb_reserve(skb, self->max_header_size + 16);
 
        asmptr = skb->h.raw = skb_put(skb, len);
-       memcpy_fromiovec(asmptr, msg->msg_iov, len);
+       err = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+       if (err) {
+               kfree_skb(skb);
+               return err;
+       }
 
        /*
         * Just send the message to TinyTP, and let it deal with possible
@@ -1549,7 +1553,11 @@
 
        IRDA_DEBUG(4, "%s(), appending user data\n", __FUNCTION__);
        asmptr = skb->h.raw = skb_put(skb, len);
-       memcpy_fromiovec(asmptr, msg->msg_iov, len);
+       err = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+       if (err) {
+               kfree_skb(skb);
+               return err;
+       }
 
        /*
         * Just send the message to TinyTP, and let it deal with possible
@@ -1612,7 +1620,11 @@
 
        IRDA_DEBUG(4, "%s(), appending user data\n", __FUNCTION__);
        asmptr = skb->h.raw = skb_put(skb, len);
-       memcpy_fromiovec(asmptr, msg->msg_iov, len);
+       err = memcpy_fromiovec(asmptr, msg->msg_iov, len);
+       if (err) {
+               kfree_skb(skb);
+               return err;
+       }
 
        err = irlmp_connless_data_request(self->lsap, skb);
        if (err) {