[PATCH 2/2] efi_rtc: probe function error out in case no efi runtime enabled

[Dave Young]

efi rtc depends on efi runtime services, so if efi runtime services are not
usable it should error out.

Without this patch rtc-efi will panic with 'noefi' boot

Signed-off-by: Dave Young <dyoung@xxxxxxxxxx>
---
 drivers/rtc/rtc-efi.c |    3 +++
 1 file changed, 3 insertions(+)

Index: linux-2.6/drivers/rtc/rtc-efi.c
===================================================================
--- linux-2.6.orig/drivers/rtc/rtc-efi.c
+++ linux-2.6/drivers/rtc/rtc-efi.c
@@ -191,6 +191,9 @@ static int __init efi_rtc_probe(struct p
 {
 	struct rtc_device *rtc;
 
+	if (!efi_enabled(EFI_RUNTIME_SERVICES))
+		return -ENODEV;
+
 	rtc = devm_rtc_device_register(&dev->dev, "rtc-efi", &efi_rtc_ops,
 					THIS_MODULE);
 	if (IS_ERR(rtc))
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/