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i40e: Fix a potential NULL pointer dereference

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commit 54902349ee95045b67e2f0c39b75f5418540064b upstream.

If 'kzalloc()' fails, a NULL pointer will be dereferenced.
Return an error code (-ENOMEM) instead.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe JAILLET 2017-08-06 23:37:01 +02:00 committed by Greg Kroah-Hartman
parent 77440c3a37
commit 8f29881eb7
1 changed files with 3 additions and 0 deletions
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3
drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
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@ -422,6 +422,9 @@ static int i40e_config_iwarp_qvlist(struct i40e_vf *vf,
(sizeof(struct i40e_virtchnl_iwarp_qv_info) *
(qvlist_info->num_vectors - 1));
vf->qvlist_info = kzalloc(size, GFP_KERNEL);
if (!vf->qvlist_info)
return -ENOMEM;
vf->qvlist_info->num_vectors = qvlist_info->num_vectors;
msix_vf = pf->hw.func_caps.num_msix_vectors_vf;