From: "David S. Miller" <[email protected]> 3.12-stable review patch. If anyone has any objections, please let me know.
=============== [ Upstream commit 397d1533b6cce0ccb5379542e2e6d079f6936c46 ] Like a signal return, we should use synchronize_user_stack() rather than flush_user_windows(). Reported-by: Ilya Malakhov <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Jiri Slaby <[email protected]> --- arch/sparc/kernel/signal_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c index 35923e8abd82..90f08055b7d2 100644 --- a/arch/sparc/kernel/signal_64.c +++ b/arch/sparc/kernel/signal_64.c @@ -49,7 +49,7 @@ asmlinkage void sparc64_set_context(struct pt_regs *regs) unsigned char fenab; int err; - flush_user_windows(); + synchronize_user_stack(); if (get_thread_wsaved() || (((unsigned long)ucp) & (sizeof(unsigned long)-1)) || (!__access_ok(ucp, sizeof(*ucp)))) -- 2.9.1
