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vfio/pci: Fix potential memory leak in vfio_msi_cap_len

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[ Upstream commit 30ea32ab1951c80c6113f300fce2c70cd12659e4 ]

Free allocated vdev->msi_perm in error path.

Signed-off-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Li Qiang 2018-09-25 13:01:27 -06:00 committed by prashantpaddune
parent cdb82e9005
commit 74e1fa8ef4
1 changed files with 3 additions and 1 deletions
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4
drivers/vfio/pci/vfio_pci_config.c
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@ -1130,8 +1130,10 @@ static int vfio_msi_cap_len(struct vfio_pci_device *vdev, u8 pos)
return -ENOMEM; return -ENOMEM;
ret = init_pci_cap_msi_perm(vdev->msi_perm, len, flags); ret = init_pci_cap_msi_perm(vdev->msi_perm, len, flags);
if (ret) if (ret) {
kfree(vdev->msi_perm);
return ret; return ret;
}
return len; return len;
} }