The 'err_remove_vmci_dev_g' error label is not at the right place.
This could lead to un-released resource.
There is also a missing label. If pci_alloc_irq_vectors() fails, the
previous vmci_event_subscribe() call must be undone.
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Acked-by: Vishnu Dasa <vdasa@xxxxxxxxxx>
---
v2:
- Fix a typo (s/err_unsubscrive_event/err_unsubscribe_event/)
---
drivers/misc/vmw_vmci/vmci_guest.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/misc/vmw_vmci/vmci_guest.c b/drivers/misc/vmw_vmci/vmci_guest.c
index 02d4722d8474..981b19308e6f 100644
--- a/drivers/misc/vmw_vmci/vmci_guest.c
+++ b/drivers/misc/vmw_vmci/vmci_guest.c
@@ -765,7 +765,7 @@ static int vmci_guest_probe_device(struct pci_dev *pdev,
/* Check host capabilities. */
error = vmci_check_host_caps(pdev);
if (error)
- goto err_remove_bitmap;
+ goto err_remove_vmci_dev_g;
/* Enable device. */
@@ -795,7 +795,7 @@ static int vmci_guest_probe_device(struct pci_dev *pdev,
error = pci_alloc_irq_vectors(pdev, 1, 1,
PCI_IRQ_MSIX | PCI_IRQ_MSI | PCI_IRQ_LEGACY);
if (error < 0)
- goto err_remove_bitmap;
+ goto err_unsubscribe_event;
} else {
vmci_dev->exclusive_vectors = true;
}
@@ -871,13 +871,19 @@ static int vmci_guest_probe_device(struct pci_dev *pdev,
err_disable_msi:
pci_free_irq_vectors(pdev);
+err_unsubscribe_event:
vmci_err = vmci_event_unsubscribe(ctx_update_sub_id);
if (vmci_err < VMCI_SUCCESS)
dev_warn(&pdev->dev,
"Failed to unsubscribe from event (type=%d) with subscriber (ID=0x%x): %d\n",
VMCI_EVENT_CTX_ID_UPDATE, ctx_update_sub_id, vmci_err);
-err_remove_bitmap:
+err_remove_vmci_dev_g:
+ spin_lock_irq(&vmci_dev_spinlock);
+ vmci_pdev = NULL;
+ vmci_dev_g = NULL;
+ spin_unlock_irq(&vmci_dev_spinlock);
+
if (vmci_dev->notification_bitmap) {
vmci_write_reg(vmci_dev, VMCI_CONTROL_RESET, VMCI_CONTROL_ADDR);
dma_free_coherent(&pdev->dev, PAGE_SIZE,
@@ -885,12 +891,6 @@ static int vmci_guest_probe_device(struct pci_dev *pdev,
vmci_dev->notification_base);
}
-err_remove_vmci_dev_g:
- spin_lock_irq(&vmci_dev_spinlock);
- vmci_pdev = NULL;
- vmci_dev_g = NULL;
- spin_unlock_irq(&vmci_dev_spinlock);
-
err_free_data_buffers:
vmci_free_dg_buffers(vmci_dev);
--
2.32.0
