lkml.org 
[lkml]   [2022]   [Mar]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH RESEND] VMCI: Check exclusive_vectors when freeing interrupt 1
On Thu, Mar 17, 2022 at 10:58:43PM -0700, vdasa@vmware.com wrote:
> From: Vishnu Dasa <vdasa@vmware.com>
>
> 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>
> ---
> drivers/misc/vmw_vmci/vmci_guest.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/misc/vmw_vmci/vmci_guest.c b/drivers/misc/vmw_vmci/vmci_guest.c
> index 6596a54daa88..57a6157209a1 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);
> --
> 2.25.1
>

You sent the previous version 2 days before this, and 5 days before
that. Please relax and don't start worrying unless it's been 2 weeks.

thanks,

greg k-h

\
 
 \ /
  Last update: 2022-03-18 13:47    [W:0.046 / U:0.632 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site