[PATCH 5.13 650/800] misc/pvpanic-pci: Fix error handling in pvpanic_pci_probe()
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-07-12 09:03:36
Also in:
lkml
Subsystem:
char and misc drivers, the rest · Maintainers:
Arnd Bergmann, Greg Kroah-Hartman, Linus Torvalds
From: Christophe JAILLET <redacted>
[ Upstream commit 372dae89972594393b57f29ec44e351fa7eedbbe ]
There is no error handling path in the probe function.
Switch to managed resource so that errors in the probe are handled easily
and simplify the remove function accordingly.
Fixes: db3a4f0abefd ("misc/pvpanic: add PCI driver")
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Christophe JAILLET <redacted>
Link: https://lore.kernel.org/r/ab071b1f4ed6e1174f9199095fb16a58bb406090.1621665058.git.christophe.jaillet@wanadoo.fr (local)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/misc/pvpanic/pvpanic-pci.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/misc/pvpanic/pvpanic-pci.c b/drivers/misc/pvpanic/pvpanic-pci.c
index 9ecc4e8559d5..046ce4ecc195 100644
--- a/drivers/misc/pvpanic/pvpanic-pci.c
+++ b/drivers/misc/pvpanic/pvpanic-pci.c@@ -78,15 +78,15 @@ static int pvpanic_pci_probe(struct pci_dev *pdev, void __iomem *base; int ret; - ret = pci_enable_device(pdev); + ret = pcim_enable_device(pdev); if (ret < 0) return ret; - base = pci_iomap(pdev, 0, 0); + base = pcim_iomap(pdev, 0, 0); if (!base) return -ENOMEM; - pi = kmalloc(sizeof(*pi), GFP_ATOMIC); + pi = devm_kmalloc(&pdev->dev, sizeof(*pi), GFP_ATOMIC); if (!pi) return -ENOMEM;
@@ -107,9 +107,6 @@ static void pvpanic_pci_remove(struct pci_dev *pdev) struct pvpanic_instance *pi = dev_get_drvdata(&pdev->dev); pvpanic_remove(pi); - iounmap(pi->base); - kfree(pi); - pci_disable_device(pdev); } static struct pci_driver pvpanic_pci_driver = {
--
2.30.2