[PATCH v6 3/4] i2c: designware: Use pcim_alloc_irq_vectors() to allocate IRQ vectors

[Dejin Zheng]

The pcim_alloc_irq_vectors() function, an explicit device-managed version
of pci_alloc_irq_vectors(). If pcim_enable_device() has been called
before, then pci_alloc_irq_vectors() is actually a device-managed
function. It is used here as a device-managed function, So replace it
with pcim_alloc_irq_vectors(). At the same time, Remove the
pci_free_irq_vectors() function to simplify the error handling path.
the freeing resources will take automatically when device is gone.

Reviewed-by: Robert Richter <rric@xxxxxxxxxx>
Acked-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Acked-by: Jarkko Nikula <jarkko.nikula@xxxxxxxxxxxxxxx>
Signed-off-by: Dejin Zheng <zhengdejin5@xxxxxxxxx>
---
v5 -> v6:
	- rebase to 5.13-rc4
v4 -> v5:
	- Modify the subject name.
v3 -> v4:
	- add some commit comments.
v2 -> v3:
	- simplify the error handling path.
v1 -> v2:
	- Modify some commit messages.

 drivers/i2c/busses/i2c-designware-pcidrv.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
index 0f409a4c2da0..2b1ef0934445 100644
--- a/drivers/i2c/busses/i2c-designware-pcidrv.c
+++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
@@ -268,7 +268,7 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
 	if (!dev)
 		return -ENOMEM;
 
-	r = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
+	r = pcim_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
 	if (r < 0)
 		return r;
 
@@ -283,10 +283,8 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
 
 	if (controller->setup) {
 		r = controller->setup(pdev, controller);
-		if (r) {
-			pci_free_irq_vectors(pdev);
+		if (r)
 			return r;
-		}
 	}
 
 	i2c_dw_adjust_bus_speed(dev);
@@ -295,10 +293,8 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
 		i2c_dw_acpi_configure(&pdev->dev);
 
 	r = i2c_dw_validate_speed(dev);
-	if (r) {
-		pci_free_irq_vectors(pdev);
+	if (r)
 		return r;
-	}
 
 	i2c_dw_configure(dev);
 
@@ -318,10 +314,8 @@ static int i2c_dw_pci_probe(struct pci_dev *pdev,
 	adap->nr = controller->bus_num;
 
 	r = i2c_dw_probe(dev);
-	if (r) {
-		pci_free_irq_vectors(pdev);
+	if (r)
 		return r;
-	}
 
 	if ((dev->flags & MODEL_MASK) == MODEL_AMD_NAVI_GPU) {
 		r = navi_amd_register_client(dev);
@@ -349,7 +343,6 @@ static void i2c_dw_pci_remove(struct pci_dev *pdev)
 
 	i2c_del_adapter(&dev->adapter);
 	devm_free_irq(&pdev->dev, dev->irq, dev);
-	pci_free_irq_vectors(pdev);
 }
 
 /* work with hotplug and coldplug */
-- 
2.30.1