X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=arch%2Fx86%2Fkernel%2Fsignal.c;h=b88fc86309bc64fabc569557ed2abf7cf082e7a4;hb=4ba568ee353d6ec6380471e59b8e58072264b7fc;hp=9e5de6813e1fa7dfa11eab1beff350fa188afb97;hpb=a4ae54f90e0a7063799eb90852aa8648ccfbb791;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 9e5de68..b88fc86 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -673,6 +673,11 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs)
 		 * handler too.
 		 */
 		regs->flags &= ~(X86_EFLAGS_DF|X86_EFLAGS_RF|X86_EFLAGS_TF);
+		/*
+		 * Ensure the signal handler starts with the new fpu state.
+		 */
+		if (used_math())
+			drop_init_fpu(current);
 	}
 	signal_setup_done(failed, ksig, test_thread_flag(TIF_SINGLESTEP));
 }