From e3c26b8d954084613de7a13fa6472d2f03429d0e Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Wed, 13 Jun 2018 10:38:33 +0200 Subject: [PATCH] arm64: zynqmp: Check return value in zynqmp_mmio_rawwrite() There should be return value check from zynqmp_mmio_read() in zynqmp_mmio_rawwrite() to make sure that errors are propagated properly. Signed-off-by: Michal Simek --- arch/arm/cpu/armv8/zynqmp/cpu.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/arm/cpu/armv8/zynqmp/cpu.c b/arch/arm/cpu/armv8/zynqmp/cpu.c index e122be59c7..1279dc8658 100644 --- a/arch/arm/cpu/armv8/zynqmp/cpu.c +++ b/arch/arm/cpu/armv8/zynqmp/cpu.c @@ -212,8 +212,12 @@ static int zynqmp_mmio_rawwrite(const u32 address, { u32 data; u32 value_local = value; + int ret; + + ret = zynqmp_mmio_read(address, &data); + if (ret) + return ret; - zynqmp_mmio_read(address, &data); data &= ~mask; value_local &= mask; value_local |= data; -- 2.39.5