4.9-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit 92a16c86299c64f58f320e491977408ba31b8c3c ]
PCI_STD_RESOURCE_END is (confusingly) the index of the last valid BAR, not the *number* of BARs. To iterate through all possible BARs, we need to include PCI_STD_RESOURCE_END.
Fixes: 55d728a40d36 ("efi/fb: Avoid reconfiguration of BAR that covers the framebuffer") Signed-off-by: Bjorn Helgaas bhelgaas@google.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/video/fbdev/efifb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c index 6f2e729a308f..f4b6d063a4b7 100644 --- a/drivers/video/fbdev/efifb.c +++ b/drivers/video/fbdev/efifb.c @@ -375,7 +375,7 @@ static void efifb_fixup_resources(struct pci_dev *dev) if (!base) return;
- for (i = 0; i < PCI_STD_RESOURCE_END; i++) { + for (i = 0; i <= PCI_STD_RESOURCE_END; i++) { struct resource *res = &dev->resource[i];
if (!(res->flags & IORESOURCE_MEM))