Commit 84288ad8 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds

i386: mtrr crash fix

Commit 3ebad590 ("[PATCH] x86: Save and
restore the fixed-range MTRRs of the BSP when suspending") added mtrr
operations without verifying that the CPU has MTRRs.  Crashes transmeta
CPUs.

Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: <linux@horizon.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 5ebffd7c
...@@ -65,6 +65,7 @@ get_fixed_ranges(mtrr_type * frs) ...@@ -65,6 +65,7 @@ get_fixed_ranges(mtrr_type * frs)
void mtrr_save_fixed_ranges(void *info) void mtrr_save_fixed_ranges(void *info)
{ {
if (cpu_has_mtrr)
get_fixed_ranges(mtrr_state.fixed_ranges); get_fixed_ranges(mtrr_state.fixed_ranges);
} }
......
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