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mdesc: fix a missing-check bug in get_vdev_port_node_info()

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[ Upstream commit 80caf43549e7e41a695c6d1e11066286538b336f ]

In get_vdev_port_node_info(), 'node_info->vdev_port.name' is allcoated
by kstrdup_const(), and it returns NULL when fails. So
'node_info->vdev_port.name' should be checked.

Signed-off-by: Gen Zhang <blackgod016574@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Gen Zhang 2019-05-31 09:24:18 +08:00 committed by Greg Kroah-Hartman
parent 4855c94b52
commit b1013624a8
1 changed files with 2 additions and 0 deletions
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2
arch/sparc/kernel/mdesc.c
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@ -355,6 +355,8 @@ static int get_vdev_port_node_info(struct mdesc_handle *md, u64 node,
node_info->vdev_port.id = *idp;
node_info->vdev_port.name = kstrdup_const(name, GFP_KERNEL);
if (!node_info->vdev_port.name)
return -1;
node_info->vdev_port.parent_cfg_hdl = *parent_cfg_hdlp;
return 0;