Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/sparc/kernel/sigutil_32.c b/arch/sparc/kernel/sigutil_32.c
index 1e9fae5..f25c6da 100644
--- a/arch/sparc/kernel/sigutil_32.c
+++ b/arch/sparc/kernel/sigutil_32.c
@@ -65,7 +65,7 @@
 	set_used_math();
 	clear_tsk_thread_flag(current, TIF_USEDFPU);
 
-	if (!access_ok(VERIFY_READ, fpu, sizeof(*fpu)))
+	if (!access_ok(fpu, sizeof(*fpu)))
 		return -EFAULT;
 
 	err = __copy_from_user(&current->thread.float_regs[0], &fpu->si_float_regs[0],