From: Shang XiaoJing shangxiaojing@huawei.com
[ Upstream commit d1f0f50fbbbbca1e3e8157e51934613bf88f6d44 ]
Add missing pci_disable_device() in fail path of mdpy_fb_probe(). Besides, fix missing release functions in mdpy_fb_remove().
Fixes: cacade1946a4 ("sample: vfio mdev display - guest driver") Signed-off-by: Shang XiaoJing shangxiaojing@huawei.com Link: https://lore.kernel.org/r/20221208013341.3999-1-shangxiaojing@huawei.com Signed-off-by: Alex Williamson alex.williamson@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- samples/vfio-mdev/mdpy-fb.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/samples/vfio-mdev/mdpy-fb.c b/samples/vfio-mdev/mdpy-fb.c index a760e130bd0d..8ad1aa13ddd9 100644 --- a/samples/vfio-mdev/mdpy-fb.c +++ b/samples/vfio-mdev/mdpy-fb.c @@ -109,7 +109,7 @@ static int mdpy_fb_probe(struct pci_dev *pdev,
ret = pci_request_regions(pdev, "mdpy-fb"); if (ret < 0) - return ret; + goto err_disable_dev;
pci_read_config_dword(pdev, MDPY_FORMAT_OFFSET, &format); pci_read_config_dword(pdev, MDPY_WIDTH_OFFSET, &width); @@ -191,6 +191,9 @@ static int mdpy_fb_probe(struct pci_dev *pdev, err_release_regions: pci_release_regions(pdev);
+err_disable_dev: + pci_disable_device(pdev); + return ret; }
@@ -199,7 +202,10 @@ static void mdpy_fb_remove(struct pci_dev *pdev) struct fb_info *info = pci_get_drvdata(pdev);
unregister_framebuffer(info); + iounmap(info->screen_base); framebuffer_release(info); + pci_release_regions(pdev); + pci_disable_device(pdev); }
static struct pci_device_id mdpy_fb_pci_table[] = {