diff options
| author | Jason Wang <jasowang@redhat.com> | 2020-07-23 11:12:54 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-08-26 14:13:59 +0200 |
| commit | 2b9f28d5e8efad34f472542315911c5ee9a65b6c (patch) | |
| tree | 119ae989ec6121bd212b58f57aed739293c59f66 /drivers/vdpa | |
| parent | vdpa: ifcvf: return err when fail to request config irq (diff) | |
| download | linux-2b9f28d5e8efad34f472542315911c5ee9a65b6c.tar.xz linux-2b9f28d5e8efad34f472542315911c5ee9a65b6c.zip | |
vdpa: ifcvf: free config irq in ifcvf_free_irq()
We don't free config irq in ifcvf_free_irq() which will trigger a
BUG() in pci core since we try to free the vectors that has an
action. Fixing this by recording the config irq in ifcvf_hw structure
and free it in ifcvf_free_irq().
Fixes: e7991f376a4d ("ifcvf: implement config interrupt in IFCVF")
Cc: Zhu Lingshan <lingshan.zhu@intel.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20200723091254.20617-2-jasowang@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Zhu Lingshan <lingshan.zhu@intel.com>
Fixes: e7991f376a4d ("ifcvf: implement config interrupt in IFCVF")
Cc: Zhu Lingshan <a class="moz-txt-link-rfc2396E" href="mailto:lingshan.zhu@intel.com"><lingshan.zhu@intel.com></a>
Signed-off-by: Jason Wang <a class="moz-txt-link-rfc2396E" href="mailto:jasowang@redhat.com"><jasowang@redhat.com></a>
Diffstat (limited to 'drivers/vdpa')
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_base.h | 2 | ||||
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_main.c | 5 |
2 files changed, 4 insertions, 3 deletions
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.h b/drivers/vdpa/ifcvf/ifcvf_base.h index 08f267a2aafe..64696d63fe07 100644 --- a/drivers/vdpa/ifcvf/ifcvf_base.h +++ b/drivers/vdpa/ifcvf/ifcvf_base.h @@ -84,7 +84,7 @@ struct ifcvf_hw { void __iomem * const *base; char config_msix_name[256]; struct vdpa_callback config_cb; - + unsigned int config_irq; }; struct ifcvf_adapter { diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c index 7d404f691b0e..8b4028556cb6 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c @@ -55,6 +55,7 @@ static void ifcvf_free_irq(struct ifcvf_adapter *adapter, int queues) vf->vring[i].irq = -EINVAL; } + devm_free_irq(&pdev->dev, vf->config_irq, vf); ifcvf_free_irq_vectors(pdev); } @@ -74,8 +75,8 @@ static int ifcvf_request_irq(struct ifcvf_adapter *adapter) snprintf(vf->config_msix_name, 256, "ifcvf[%s]-config\n", pci_name(pdev)); vector = 0; - irq = pci_irq_vector(pdev, vector); - ret = devm_request_irq(&pdev->dev, irq, + vf->config_irq = pci_irq_vector(pdev, vector); + ret = devm_request_irq(&pdev->dev, vf->config_irq, ifcvf_config_changed, 0, vf->config_msix_name, vf); if (ret) { |