From 126c0524648631a0f6fba4d016586b236209fe6f Mon Sep 17 00:00:00 2001 From: Ying Xue Date: Mon, 17 Jun 2013 10:54:50 -0400 Subject: [PATCH] tipc: fix wrong return value for link_send_sections_long routine When skb buffer cannot be allocated in link_send_sections_long(), -ENOMEM error code instead of -EFAULT should be returned to its caller. Signed-off-by: Ying Xue Signed-off-by: Paul Gortmaker Signed-off-by: David S. Miller --- net/tipc/link.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/net/tipc/link.c b/net/tipc/link.c index b6ffa9f..0cc3d90 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -1168,6 +1168,7 @@ static int link_send_sections_long(struct tipc_port *sender, const unchar *sect_crs; int curr_sect; u32 fragm_no; + int res = 0; again: fragm_no = 1; @@ -1215,12 +1216,13 @@ again: sz = fragm_rest; if (copy_from_user(buf->data + fragm_crs, sect_crs, sz)) { + res = -EFAULT; error: for (; buf_chain; buf_chain = buf) { buf = buf_chain->next; kfree_skb(buf_chain); } - return -EFAULT; + return res; } sect_crs += sz; sect_rest -= sz; @@ -1241,8 +1243,10 @@ error: msg_set_fragm_no(&fragm_hdr, ++fragm_no); prev = buf; buf = tipc_buf_acquire(fragm_sz + INT_H_SIZE); - if (!buf) + if (!buf) { + res = -ENOMEM; goto error; + } buf->next = NULL; prev->next = buf; -- 2.7.4