Update Linux to v5.4.2

Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/nios2/kernel/signal.c b/arch/nios2/kernel/signal.c
index 20662b0..a42dd09 100644
--- a/arch/nios2/kernel/signal.c
+++ b/arch/nios2/kernel/signal.c
@@ -106,7 +106,7 @@
 	sigset_t set;
 	int rval;
 
-	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+	if (!access_ok(frame, sizeof(*frame)))
 		goto badframe;
 
 	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
@@ -120,7 +120,7 @@
 	return rval;
 
 badframe:
-	force_sig(SIGSEGV, current);
+	force_sig(SIGSEGV);
 	return 0;
 }
 
@@ -211,7 +211,7 @@
 	return 0;
 
 give_sigsegv:
-	force_sigsegv(ksig->sig, current);
+	force_sigsegv(ksig->sig);
 	return -EFAULT;
 }