From: Feng Tang <feng.tang@intel.com>
Date: Thu, 7 Apr 2011 01:39:49 +0000 (+0800)
Subject: x86/mrst/vrtc: Fix boot crash in mrst_rtc_init()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=09552b2696896dbb715be0caf91b23276f9139ba;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

x86/mrst/vrtc: Fix boot crash in mrst_rtc_init()

The sfi_mrtc_array[] only gets initialized when the sfi mrtc
table is parsed, so the vrtc_paddr should be initalized after it
too.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1302140389-27603-1-git-send-email-feng.tang@intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/platform/mrst/vrtc.c b/arch/x86/platform/mrst/vrtc.c
index 04cf645feb92..73d70d65e76e 100644
--- a/arch/x86/platform/mrst/vrtc.c
+++ b/arch/x86/platform/mrst/vrtc.c
@@ -100,9 +100,11 @@ int vrtc_set_mmss(unsigned long nowtime)
 
 void __init mrst_rtc_init(void)
 {
-	unsigned long vrtc_paddr = sfi_mrtc_array[0].phys_addr;
+	unsigned long vrtc_paddr;
 
 	sfi_table_parse(SFI_SIG_MRTC, NULL, NULL, sfi_parse_mrtc);
+
+	vrtc_paddr = sfi_mrtc_array[0].phys_addr;
 	if (!sfi_mrtc_num || !vrtc_paddr)
 		return;