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Commit c38e2345 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

i387: fix sense of sanity check 



The check for save_init_fpu() (introduced in commit 5b1cbac3: "i387:
make irq_fpu_usable() tests more robust") was the wrong way around, but
I hadn't noticed, because my "tests" were bogus: the FPU exceptions are
disabled by default, so even doing a divide by zero never actually
triggers this code at all unless you do extra work to enable them.

So if anybody did enable them, they'd get one spurious warning.

Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 7ada1dd6

arch/x86/include/asm/i387.h

+1 −1
Original line number Diff line number Diff line
@@ -404,7 +404,7 @@ static inline void irq_ts_restore(int TS_state) 
 */

static inline void save_init_fpu(struct task_struct *tsk)

{

	WARN_ON_ONCE(task_thread_info(tsk)->status & TS_USEDFPU);

	WARN_ON_ONCE(!(task_thread_info(tsk)->status & TS_USEDFPU));

	preempt_disable();

	__save_init_fpu(tsk);

	stts();