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Diffstat (limited to 'net/sctp/chunk.c')
-rw-r--r--net/sctp/chunk.c20
1 files changed, 14 insertions, 6 deletions
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index 7c2df9c33df3..69ce21e3716f 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -183,7 +183,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
183 183
184 msg = sctp_datamsg_new(GFP_KERNEL); 184 msg = sctp_datamsg_new(GFP_KERNEL);
185 if (!msg) 185 if (!msg)
186 return NULL; 186 return ERR_PTR(-ENOMEM);
187 187
188 /* Note: Calculate this outside of the loop, so that all fragments 188 /* Note: Calculate this outside of the loop, so that all fragments
189 * have the same expiration. 189 * have the same expiration.
@@ -280,11 +280,14 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
280 280
281 chunk = sctp_make_datafrag_empty(asoc, sinfo, len, frag, 0); 281 chunk = sctp_make_datafrag_empty(asoc, sinfo, len, frag, 0);
282 282
283 if (!chunk) 283 if (!chunk) {
284 err = -ENOMEM;
284 goto errout; 285 goto errout;
286 }
287
285 err = sctp_user_addto_chunk(chunk, offset, len, msgh->msg_iov); 288 err = sctp_user_addto_chunk(chunk, offset, len, msgh->msg_iov);
286 if (err < 0) 289 if (err < 0)
287 goto errout; 290 goto errout_chunk_free;
288 291
289 offset += len; 292 offset += len;
290 293
@@ -315,8 +318,10 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
315 318
316 chunk = sctp_make_datafrag_empty(asoc, sinfo, over, frag, 0); 319 chunk = sctp_make_datafrag_empty(asoc, sinfo, over, frag, 0);
317 320
318 if (!chunk) 321 if (!chunk) {
322 err = -ENOMEM;
319 goto errout; 323 goto errout;
324 }
320 325
321 err = sctp_user_addto_chunk(chunk, offset, over,msgh->msg_iov); 326 err = sctp_user_addto_chunk(chunk, offset, over,msgh->msg_iov);
322 327
@@ -324,7 +329,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
324 __skb_pull(chunk->skb, (__u8 *)chunk->chunk_hdr 329 __skb_pull(chunk->skb, (__u8 *)chunk->chunk_hdr
325 - (__u8 *)chunk->skb->data); 330 - (__u8 *)chunk->skb->data);
326 if (err < 0) 331 if (err < 0)
327 goto errout; 332 goto errout_chunk_free;
328 333
329 sctp_datamsg_assign(msg, chunk); 334 sctp_datamsg_assign(msg, chunk);
330 list_add_tail(&chunk->frag_list, &msg->chunks); 335 list_add_tail(&chunk->frag_list, &msg->chunks);
@@ -332,6 +337,9 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
332 337
333 return msg; 338 return msg;
334 339
340errout_chunk_free:
341 sctp_chunk_free(chunk);
342
335errout: 343errout:
336 list_for_each_safe(pos, temp, &msg->chunks) { 344 list_for_each_safe(pos, temp, &msg->chunks) {
337 list_del_init(pos); 345 list_del_init(pos);
@@ -339,7 +347,7 @@ errout:
339 sctp_chunk_free(chunk); 347 sctp_chunk_free(chunk);
340 } 348 }
341 sctp_datamsg_put(msg); 349 sctp_datamsg_put(msg);
342 return NULL; 350 return ERR_PTR(err);
343} 351}
344 352
345/* Check whether this message has expired. */ 353/* Check whether this message has expired. */