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Commit fe1cbaba authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Eric Van Hensbergen
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net/9p: p9_idpool_get return -1 on error 



We need to return -1 on error. Also handle error properly

Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: default avatarEric Van Hensbergen <ericvh@gmail.com>
parent 398c4f0e

net/9p/client.c

+12 −8
Original line number Diff line number Diff line
@@ -304,12 +304,13 @@ static int p9_tag_init(struct p9_client *c) 
	c->tagpool = p9_idpool_create();

	if (IS_ERR(c->tagpool)) {

		err = PTR_ERR(c->tagpool);

		c->tagpool = NULL;

		goto error;

	}



	p9_idpool_get(c->tagpool); /* reserve tag 0 */



	err = p9_idpool_get(c->tagpool); /* reserve tag 0 */

	if (err < 0) {

		p9_idpool_destroy(c->tagpool);

		goto error;

	}

	c->max_tag = 0;

error:

	return err;
@@ -789,11 +790,13 @@ struct p9_client *p9_client_create(const char *dev_name, char *options) 
	spin_lock_init(&clnt->lock);

	INIT_LIST_HEAD(&clnt->fidlist);



	p9_tag_init(clnt);

	err = p9_tag_init(clnt);

	if (err < 0)

		goto free_client;



	err = parse_opts(options, clnt);

	if (err < 0)

		goto free_client;

		goto destroy_tagpool;



	if (!clnt->trans_mod)

		clnt->trans_mod = v9fs_get_default_trans();
@@ -802,13 +805,12 @@ struct p9_client *p9_client_create(const char *dev_name, char *options) 
		err = -EPROTONOSUPPORT;

		P9_DPRINTK(P9_DEBUG_ERROR,

				"No transport defined or default transport\n");

		goto free_client;

		goto destroy_tagpool;

	}



	clnt->fidpool = p9_idpool_create();

	if (IS_ERR(clnt->fidpool)) {

		err = PTR_ERR(clnt->fidpool);

		clnt->fidpool = NULL;

		goto put_trans;

	}
@@ -834,6 +836,8 @@ destroy_fidpool: 
	p9_idpool_destroy(clnt->fidpool);

put_trans:

	v9fs_put_trans(clnt->trans_mod);

destroy_tagpool:

	p9_idpool_destroy(clnt->tagpool);

free_client:

	kfree(clnt);

	return ERR_PTR(err);

net/9p/util.c

+1 −1
Original line number Diff line number Diff line
@@ -93,7 +93,7 @@ int p9_idpool_get(struct p9_idpool *p) 


retry:

	if (idr_pre_get(&p->pool, GFP_NOFS) == 0)

		return 0;

		return -1;



	spin_lock_irqsave(&p->lock, flags);