diff options
| author | Vishnu Dasa <vdasa@vmware.com> | 2022-03-17 22:58:43 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-18 13:47:34 +0100 |
| commit | 5df0e734b8c39598effe0f17e5bd8ff7748a0693 (patch) | |
| tree | 2c26482b6b5c5487dd49038c84bc5676211b79b9 /drivers/misc | |
| parent | e70bcbcfa983580109c5daa2391ecb9d07dc7cfd (diff) | |
| download | linux-5df0e734b8c39598effe0f17e5bd8ff7748a0693.tar.bz2 | |
VMCI: Check exclusive_vectors when freeing interrupt 1
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>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/vmw_vmci/vmci_guest.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/misc/vmw_vmci/vmci_guest.c b/drivers/misc/vmw_vmci/vmci_guest.c index 981b19308e6f..c8181467d4c5 100644 --- a/drivers/misc/vmw_vmci/vmci_guest.c +++ b/drivers/misc/vmw_vmci/vmci_guest.c @@ -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); |