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Subject[PATCH] vfio: fix potential memory leak in vfio_msi_cap_len
Date
Free the vdev->msi_perm in error path.

Signed-off-by: Li Qiang <liq3ea@gmail.com>
---
drivers/vfio/pci/vfio_pci_config.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
index 115a36f6f403..62023b4a373b 100644
--- a/drivers/vfio/pci/vfio_pci_config.c
+++ b/drivers/vfio/pci/vfio_pci_config.c
@@ -1180,8 +1180,10 @@ static int vfio_msi_cap_len(struct vfio_pci_device *vdev, u8 pos)
return -ENOMEM;

ret = init_pci_cap_msi_perm(vdev->msi_perm, len, flags);
- if (ret)
+ if (ret) {
+ kfree(vdev->msi_perm);
return ret;
+ }

return len;
}
--
2.11.0
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