To iterate through all possible BARs, loop conditions refactored to the *number* of BARs "i < PCI_STD_NUM_BARS", instead of the index of the last valid BAR "i <= BAR_5". This is more idiomatic C style and allows to avoid the fencepost error. Array definitions changed to PCI_STD_NUM_BARS where appropriate.
Cc: Kishon Vijay Abraham I <[email protected]> Cc: Lorenzo Pieralisi <[email protected]> Signed-off-by: Denis Efremov <[email protected]> --- drivers/misc/pci_endpoint_test.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/misc/pci_endpoint_test.c b/drivers/misc/pci_endpoint_test.c index 6e208a060a58..a5e317073d95 100644 --- a/drivers/misc/pci_endpoint_test.c +++ b/drivers/misc/pci_endpoint_test.c @@ -94,7 +94,7 @@ enum pci_barno { struct pci_endpoint_test { struct pci_dev *pdev; void __iomem *base; - void __iomem *bar[6]; + void __iomem *bar[PCI_STD_NUM_BARS]; struct completion irq_raised; int last_irq; int num_irqs; @@ -687,7 +687,7 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev, if (!pci_endpoint_test_request_irq(test)) goto err_disable_irq; - for (bar = BAR_0; bar <= BAR_5; bar++) { + for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) { if (pci_resource_flags(pdev, bar) & IORESOURCE_MEM) { base = pci_ioremap_bar(pdev, bar); if (!base) { @@ -740,7 +740,7 @@ static int pci_endpoint_test_probe(struct pci_dev *pdev, ida_simple_remove(&pci_endpoint_test_ida, id); err_iounmap: - for (bar = BAR_0; bar <= BAR_5; bar++) { + for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) { if (test->bar[bar]) pci_iounmap(pdev, test->bar[bar]); } @@ -771,7 +771,7 @@ static void pci_endpoint_test_remove(struct pci_dev *pdev) misc_deregister(&test->miscdev); kfree(misc_device->name); ida_simple_remove(&pci_endpoint_test_ida, id); - for (bar = BAR_0; bar <= BAR_5; bar++) { + for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) { if (test->bar[bar]) pci_iounmap(pdev, test->bar[bar]); } -- 2.21.0
