[PATCH 4.14 32/77] xen/platform-pci: add missing free_irq() in error path

Greg Kroah-Hartman
2022-12-05T19:15:36Z

From: ruanjinjie <ruanjinjie@huawei.com>

[ Upstream commit c53717e1e3f0d0f9129b2e0dbc6dcc5e0a8132e9 ]

free_irq() is missing in case of error in platform_pci_probe(), fix that.

Signed-off-by: ruanjinjie <ruanjinjie@huawei.com>
Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Link: https://lore.kernel.org/r/20221114112124.1965611-1-ruanjinjie@huawei.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/xen/platform-pci.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/xen/platform-pci.c b/drivers/xen/platform-pci.c
index 4cec8146609a..c7e190e5db30 100644
--- a/drivers/xen/platform-pci.c
+++ b/drivers/xen/platform-pci.c
@@ -150,7 +150,7 @@ static int platform_pci_probe(struct pci_dev *pdev,
if (ret) {
dev_warn(&pdev->dev, "Unable to set the evtchn callback "
"err=%d\n", ret);
- goto out;
+ goto irq_out;
}
}

@@ -158,13 +158,16 @@ static int platform_pci_probe(struct pci_dev *pdev,
grant_frames = alloc_xen_mmio(PAGE_SIZE * max_nr_gframes);
ret = gnttab_setup_auto_xlat_frames(grant_frames);
if (ret)
- goto out;
+ goto irq_out;
ret = gnttab_init();
if (ret)
goto grant_out;
return 0;
grant_out:
gnttab_free_auto_xlat_frames();
+irq_out:
+ if (!xen_have_vector_callback)
+ free_irq(pdev->irq, pdev);
out:
pci_release_region(pdev, 0);
mem_out:
--
2.35.1