MIPS: fw: sni: Fix out of bounds init of o32 stack

[ Upstream commit efcb529694c3b707dc0471b312944337ba16e4dd ]

Use ARRAY_SIZE to caluculate the top of the o32 stack.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/mips/fw/sni/sniprom.c b/arch/mips/fw/sni/sniprom.c
index 6aa264b..7c6151d 100644 (file)
--- a/arch/mips/fw/sni/sniprom.c
+++ b/arch/mips/fw/sni/sniprom.c
@@ -42,7 +42,7 @@
 
 /* O32 stack has to be 8-byte aligned. */
 static u64 o32_stk[4096];
-#define O32_STK          &o32_stk[sizeof(o32_stk)]
+#define O32_STK          (&o32_stk[ARRAY_SIZE(o32_stk)])
 
 #define __PROM_O32(fun, arg) fun arg __asm__(#fun); \
                                     __asm__(#fun " = call_o32")