um: get_safe_registers() should be done in flush_thread(), not start_thread()

... or we'll end up buggering the results of ELF_PLAT_INIT()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 3a8ece7d09c..0d7103c9eff 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -32,13 +32,14 @@ void flush_thread(void)
                        "err = %d\n", ret);
                 force_sig(SIGKILL, current);
         }
+        get_safe_registers(current_pt_regs()->regs.gp,
+                           current_pt_regs()->regs.fp);
 
         __switch_mm(&current->mm->context.id);
 }
 
 void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
 {
-        get_safe_registers(regs->regs.gp, regs->regs.fp);
         PT_REGS_IP(regs) = eip;
         PT_REGS_SP(regs) = esp;
         current->ptrace &= ~PT_DTRACE;