From: vdasa@vmware.com To: linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org Cc: gregkh@linuxfoundation.org, pv-drivers@vmware.com, bryantan@vmware.com, rjalisatgi@vmware.com, Vishnu Dasa <vdasa@vmware.com>, Dan Carpenter <dan.carpenter@oracle.com> Subject: [PATCH RESEND] VMCI: Release notification_bitmap in error path Date: Thu, 17 Mar 2022 23:00:40 -0700 [thread overview] Message-ID: <20220318060040.31621-1-vdasa@vmware.com> (raw) From: Vishnu Dasa <vdasa@vmware.com> notification_bitmap may not be released when VMCI_CAPS_DMA_DATAGRAM capability is missing from the device. Add missing 'err_free_notification_bitmap' label and use it instead of 'err_free_data_buffers' to avoid this. Fixes: eed2298d9360 ("VMCI: dma dg: detect DMA datagram capability") 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 | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/misc/vmw_vmci/vmci_guest.c b/drivers/misc/vmw_vmci/vmci_guest.c index 981b19308e6f..6596a54daa88 100644 --- a/drivers/misc/vmw_vmci/vmci_guest.c +++ b/drivers/misc/vmw_vmci/vmci_guest.c @@ -720,7 +720,7 @@ static int vmci_guest_probe_device(struct pci_dev *pdev, dev_err(&pdev->dev, "Missing capability: VMCI_CAPS_DMA_DATAGRAM\n"); error = -ENXIO; - goto err_free_data_buffers; + goto err_free_notification_bitmap; } } @@ -884,6 +884,7 @@ static int vmci_guest_probe_device(struct pci_dev *pdev, vmci_dev_g = NULL; spin_unlock_irq(&vmci_dev_spinlock); +err_free_notification_bitmap: if (vmci_dev->notification_bitmap) { vmci_write_reg(vmci_dev, VMCI_CONTROL_RESET, VMCI_CONTROL_ADDR); dma_free_coherent(&pdev->dev, PAGE_SIZE, -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: vdasa@vmware.com To: linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org Cc: Vishnu Dasa <vdasa@vmware.com>, pv-drivers@vmware.com, gregkh@linuxfoundation.org, rjalisatgi@vmware.com, bryantan@vmware.com, Dan Carpenter <dan.carpenter@oracle.com> Subject: [PATCH RESEND] VMCI: Release notification_bitmap in error path Date: Thu, 17 Mar 2022 23:00:40 -0700 [thread overview] Message-ID: <20220318060040.31621-1-vdasa@vmware.com> (raw) From: Vishnu Dasa <vdasa@vmware.com> notification_bitmap may not be released when VMCI_CAPS_DMA_DATAGRAM capability is missing from the device. Add missing 'err_free_notification_bitmap' label and use it instead of 'err_free_data_buffers' to avoid this. Fixes: eed2298d9360 ("VMCI: dma dg: detect DMA datagram capability") 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 | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/misc/vmw_vmci/vmci_guest.c b/drivers/misc/vmw_vmci/vmci_guest.c index 981b19308e6f..6596a54daa88 100644 --- a/drivers/misc/vmw_vmci/vmci_guest.c +++ b/drivers/misc/vmw_vmci/vmci_guest.c @@ -720,7 +720,7 @@ static int vmci_guest_probe_device(struct pci_dev *pdev, dev_err(&pdev->dev, "Missing capability: VMCI_CAPS_DMA_DATAGRAM\n"); error = -ENXIO; - goto err_free_data_buffers; + goto err_free_notification_bitmap; } } @@ -884,6 +884,7 @@ static int vmci_guest_probe_device(struct pci_dev *pdev, vmci_dev_g = NULL; spin_unlock_irq(&vmci_dev_spinlock); +err_free_notification_bitmap: if (vmci_dev->notification_bitmap) { vmci_write_reg(vmci_dev, VMCI_CONTROL_RESET, VMCI_CONTROL_ADDR); dma_free_coherent(&pdev->dev, PAGE_SIZE, -- 2.25.1 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
next reply other threads:[~2022-03-18 6:01 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-03-18 6:00 vdasa [this message] 2022-03-18 6:00 ` [PATCH RESEND] VMCI: Release notification_bitmap in error path vdasa
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