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[PATCH 2/2] efirtc: add efi_enabled check in efi_rtc_init

From Geliang Tang <geliangtang@163.com>
Newsgroups linux.kernel
Subject [PATCH 2/2] efirtc: add efi_enabled check in efi_rtc_init
Date 2015-11-02 16:00 +0100
Message-ID <qqoKv-6yI-31@gated-at.bofh.it> (permalink)
References <qqoKv-6yI-29@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Add efi_enabled check in efi_rtc_init() to make sure that efi is enabled.

Signed-off-by: Geliang Tang <geliangtang@163.com>
---
 drivers/char/efirtc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/char/efirtc.c b/drivers/char/efirtc.c
index 5323d8c..80058bd 100644
--- a/drivers/char/efirtc.c
+++ b/drivers/char/efirtc.c
@@ -378,6 +378,9 @@ efi_rtc_init(void)
 	int ret;
 	struct proc_dir_entry *dir;
 
+	if (!efi_enabled(EFI_RUNTIME_SERVICES))
+		return 0;
+
 	printk(KERN_INFO "EFI Time Services Driver v%s\n", EFI_RTC_VERSION);
 
 	ret = misc_register(&efi_rtc_dev);
-- 
2.4.3


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Thread

[PATCH 1/2] efirtc: replace 1998 with EFI_RTC_EPOCH Geliang Tang <geliangtang@163.com> - 2015-11-02 16:00 +0100
  [PATCH 2/2] efirtc: add efi_enabled check in efi_rtc_init Geliang Tang <geliangtang@163.com> - 2015-11-02 16:00 +0100
    Re: [PATCH 2/2] efirtc: add efi_enabled check in efi_rtc_init Arnd Bergmann <arnd@arndb.de> - 2015-11-02 16:40 +0100
      Re: [PATCH 2/2] efirtc: add efi_enabled check in efi_rtc_init Geliang Tang <geliangtang@163.com> - 2015-11-04 15:50 +0100
        Re: [PATCH 2/2] efirtc: add efi_enabled check in efi_rtc_init Arnd Bergmann <arnd@arndb.de> - 2015-11-04 16:00 +0100

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