x86: fdiv bug detection fix

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The fdiv detection code writes s32 integer into
the boot_cpu_data.fdiv_bug.
However, the boot_cpu_data.fdiv_bug is only char (s8)
field so the detection overwrites already set fields for
other bugs, e.g. the f00f bug field.

Use local s32 variable to receive result.

This is a partial fix to Bugzilla #9928  - fixes wrong
information about the f00f bug (tested) and probably
for coma bug (I have no cpu to test this).

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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This commit is contained in:

Krzysztof Helt 2008-07-31 23:43:44 +02:00 • committed by Ingo Molnar

parent 8978b74253

commit e0d22d03c0

1 changed files with 5 additions and 1 deletions

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arch/x86/kernel/cpu/bugs.c

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