From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 8 Aug 2022 15:06:46 +0000 (+0100)
Subject: nios2: don't leave NULLs in sys_call_table[]
X-Git-Tag: v5.15.73~905
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=80cae5d810d260fc3026fd1a9c3aacadb14d74a1;p=platform%2Fkernel%2Flinux-rpi.git

nios2: don't leave NULLs in sys_call_table[]

commit 45ec746c65097c25e77d24eae8fee0def5b6cc5d upstream.

fill the gaps in there with sys_ni_syscall, as everyone does...

Fixes: 82ed08dd1b0e ("nios2: Exception handling")
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/arch/nios2/kernel/entry.S b/arch/nios2/kernel/entry.S
index fbd348b..8f41ef5 100644
--- a/arch/nios2/kernel/entry.S
+++ b/arch/nios2/kernel/entry.S
@@ -193,7 +193,6 @@ local_restart:
 	movhi	r11, %hiadj(sys_call_table)
 	add	r1, r1, r11
 	ldw	r1, %lo(sys_call_table)(r1)
-	beq	r1, r0, ret_invsyscall
 
 	/* Check if we are being traced */
 	GET_THREAD_INFO r11
diff --git a/arch/nios2/kernel/syscall_table.c b/arch/nios2/kernel/syscall_table.c
index 6176d63..c2875a6 100644
--- a/arch/nios2/kernel/syscall_table.c
+++ b/arch/nios2/kernel/syscall_table.c
@@ -13,5 +13,6 @@
 #define __SYSCALL(nr, call) [nr] = (call),
 
 void *sys_call_table[__NR_syscalls] = {
+	[0 ... __NR_syscalls-1] = sys_ni_syscall,
 #include <asm/unistd.h>
 };