[PATCH 4.19 004/168] x86/mce/inject: Fix a wrong assignment of i_mce.status

[Greg Kroah-Hartman]

From: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxx>

[ Upstream commit 5d7f7d1d5e01c22894dee7c9c9266500478dca99 ]

The original code is a nop as i_mce.status is or'ed with part of itself,
fix it.

Fixes: a1300e505297 ("x86/ras/mce_amd_inj: Trigger deferred and thresholding errors interrupts")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Acked-by: Yazen Ghannam <yazen.ghannam@xxxxxxx>
Link: https://lkml.kernel.org/r/20200611023238.3830-1-zhenzhong.duan@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/x86/kernel/cpu/mcheck/mce-inject.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce-inject.c b/arch/x86/kernel/cpu/mcheck/mce-inject.c
index 1ceccc4a5472c..9cc524be3c949 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-inject.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-inject.c
@@ -518,7 +518,7 @@ static void do_inject(void)
 	 */
 	if (inj_type == DFR_INT_INJ) {
 		i_mce.status |= MCI_STATUS_DEFERRED;
-		i_mce.status |= (i_mce.status & ~MCI_STATUS_UC);
+		i_mce.status &= ~MCI_STATUS_UC;
 	}
 
 	/*
-- 
2.25.1