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linux/arch/x86/platform
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Lee, Chun-Yi eccaf52fee x86, efi: initial the local variable of DataSize to zero 
That will be better initial the value of DataSize to zero for the input of
GetVariable(), otherwise we will feed a random value. The debug log of input
DataSize like this:

...
[  195.915612] EFI Variables Facility v0.08 2004-May-17
[  195.915819] efi: size: 18446744071581821342
[  195.915969] efi:  size': 18446744071581821342
[  195.916324] efi: size: 18446612150714306560
[  195.916632] efi:  size': 18446612150714306560
[  195.917159] efi: size: 18446612150714306560
[  195.917453] efi:  size': 18446612150714306560
...

The size' is value that was returned by BIOS.

After applied this patch:
[   82.442042] EFI Variables Facility v0.08 2004-May-17
[   82.442202] efi: size: 0
[   82.442360] efi:  size': 1039
[   82.443828] efi: size: 0
[   82.444127] efi:  size': 2616
[   82.447057] efi: size: 0
[   82.447356] efi:  size': 5832
...

Found on Acer Aspire V3 BIOS, it will not return the size of data if we input a
non-zero DataSize.

Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2013-05-14 08:13:05 +01:00
..
ce4100 TTY/Serial merge for 3.8-rc1 2012-12-11 14:08:47 -08:00
efi x86, efi: initial the local variable of DataSize to zero 2013-05-14 08:13:05 +01:00
geode arch/x86/platform/geode/net5501.c: change active_low to 0 for LED driver 2012-05-04 14:40:07 -07:00
goldfish goldfish: platform device for x86 2013-01-21 12:09:19 -08:00
iris arch/x86/platform/iris/iris.c: register a platform device and a platform driver 2012-12-18 15:02:11 -08:00
mrst Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-04-30 08:42:11 -07:00
olpc x86/olpc/xo1/sci: Don't call input_free_device() after input_unregister_device() 2013-04-24 08:44:47 +02:00
scx200 X86: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
sfi x86: Convert a few mistaken __cpuinit annotations to __init 2013-01-24 17:12:19 +01:00
ts5500 x86: Add TS-5500 platform support 2013-01-25 19:40:23 +01:00
uv x86/platform/uv: Replace kmalloc() & memset with kzalloc() 2013-03-11 08:33:01 +01:00
visws x86/apic: Fix typo EIO_ACK -> EOI_ACK and document it 2012-05-18 09:46:07 +02:00
Makefile x86: Add TS-5500 platform support 2013-01-25 19:40:23 +01:00