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VMCI: Check exclusive_vectors when freeing interrupt 1

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free_irq() may be called to free an interrupt that was not
allocated.  Add missing 'if' statement to check for
exclusive_vectors when freeing interrupt 1.

Fixes: cc68f2177fcb ("VMCI: dma dg: register dummy IRQ handlers for DMA datagrams")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Bryan Tan <bryantan@vmware.com>
Reviewed-by: Rajesh Jalisatgi <rjalisatgi@vmware.com>
Signed-off-by: Vishnu Dasa <vdasa@vmware.com>
Link: https://lore.kernel.org/r/20220318055843.30606-1-vdasa@vmware.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vishnu Dasa 2022-03-17 22:58:43 -07:00 committed by Greg Kroah-Hartman
parent e70bcbcfa9
commit 5df0e734b8
1 changed files with 3 additions and 1 deletions
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4
drivers/misc/vmw_vmci/vmci_guest.c
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@ -862,7 +862,9 @@ static int vmci_guest_probe_device(struct pci_dev *pdev,
return 0;
err_free_bm_irq:
free_irq(pci_irq_vector(pdev, 1), vmci_dev);
if (vmci_dev->exclusive_vectors)
free_irq(pci_irq_vector(pdev, 1), vmci_dev);
err_free_irq:
free_irq(pci_irq_vector(pdev, 0), vmci_dev);
tasklet_kill(&vmci_dev->datagram_tasklet);