[MIPS] Make sure cpu_has_fpu is used only in atomic context

Make sure cpu_has_fpu (which uses smp_processor_id()) is used only in
atomic context.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index f40ecd8be05f..d9a39c169450 100644
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -175,7 +175,9 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data)
                         unsigned int mtflags;
 #endif /* CONFIG_MIPS_MT_SMTC */
 
+                        preempt_disable();
                         if (!cpu_has_fpu) {
+                                preempt_enable();
                                 tmp = 0;
                                 break;
                         }
@@ -186,7 +188,6 @@ asmlinkage int sys32_ptrace(int request, int pid, int addr, int data)
                         mtflags = dmt();
 #endif /* CONFIG_MIPS_MT_SMTC */
 
-                        preempt_disable();
                         if (cpu_has_mipsmt) {
                                 unsigned int vpflags = dvpe();
                                 flags = read_c0_status();