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authorLinus Torvalds <torvalds@linux-foundation.org>2012-02-15 08:05:18 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-02-15 08:05:18 -0800
commitc38e23456278e967f094b08247ffc3711b1029b2 (patch)
treeecd87e1fcd9c4e397d531081e45718cae132f7c1 /arch
parent7ada1dd62804ca9ce1cb8666c6e563cd92fa50c1 (diff)
i387: fix sense of sanity check
The check for save_init_fpu() (introduced in commit 5b1cbac37798: "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: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/include/asm/i387.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/i387.h b/arch/x86/include/asm/i387.h
index a29571821b99..727c1dd84899 100644
--- a/arch/x86/include/asm/i387.h
+++ b/arch/x86/include/asm/i387.h
@@ -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();