[PATCH 3/3] rtc-efi: set uie_unsupported for indicate rtc-efi doesn't support UIE mode

[Lee, Chun-Yi]

This patch set uie_unsupported flag when driver probed because current rtc-efi
driver doesn't support UIE mode. Otherwise RTC_UIE_ON ioctl doesn't return EINVAL
and it causes userspace think the RTC_UIE supported by rtc-efi.

Set uie_unsupported then We can enable CONFIG_RTC_INTF_DEV_UIE_EMUL to emulate
RTC_UIE on rtc-efi.

Cc: Matt Fleming <matt.fleming@xxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Matthew Garrett <matthew.garrett@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jan Beulich <JBeulich@xxxxxxxx>
Signed-off-by: Lee, Chun-Yi <jlee@xxxxxxxx>
---
 drivers/rtc/rtc-efi.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/rtc/rtc-efi.c b/drivers/rtc/rtc-efi.c
index 4e74ec0..dad1687 100644
--- a/drivers/rtc/rtc-efi.c
+++ b/drivers/rtc/rtc-efi.c
@@ -208,6 +208,8 @@ static int __init efi_rtc_probe(struct platform_device *dev)
 	if (IS_ERR(rtc))
 		return PTR_ERR(rtc);
 
+	rtc->uie_unsupported = 1;
+
 	platform_set_drvdata(dev, rtc);
 
 	return 0;
-- 
1.6.4.2

--
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/