Commit 3053600e authored by Dominique Martinet's avatar Dominique Martinet Committed by Eric Van Hensbergen
Browse files

9p: trans_fd, bail out if recv fcall if missing 



req->rc is pre-allocated early on with p9_tag_alloc and shouldn't be missing

Signed-off-by: default avatarDominique Martinet <dominique.martinet@cea.fr>
Signed-off-by: default avatarEric Van Hensbergen <ericvh@gmail.com>
parent 947867aa

net/9p/trans_fd.c

+6 −7
Original line number Diff line number Diff line
@@ -356,14 +356,13 @@ static void p9_read_work(struct work_struct *work) 
		}



		if (m->req->rc == NULL) {

			m->req->rc = kmalloc(sizeof(struct p9_fcall) +

						m->client->msize, GFP_NOFS);

			if (!m->req->rc) {

			p9_debug(P9_DEBUG_ERROR,

				 "No recv fcall for tag %d (req %p), disconnecting!\n",

				 m->rc.tag, m->req);

			m->req = NULL;

				err = -ENOMEM;

			err = -EIO;

			goto error;

		}

		}

		m->rc.sdata = (char *)m->req->rc + sizeof(struct p9_fcall);

		memcpy(m->rc.sdata, m->tmp_buf, m->rc.capacity);

		m->rc.capacity = m->rc.size;