linux-kernel - [PATCH] x86/mm/kmmio: correctly handle kzalloc return

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Message-Id: <20201020084345.96823-1-dmugil2000@gmail.com>
Date:   Tue, 20 Oct 2020 14:13:44 +0530
From:   Mugilraj Dhavachelvan <dmugil2000@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     dmugil2000@...il.com, Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...nel.org>,
        Karol Herbst <karolherbst@...il.com>,
        Pekka Paalanen <ppaalanen@...il.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...en8.de>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
        nouveau@...ts.freedesktop.org
Subject: [PATCH] x86/mm/kmmio: correctly handle kzalloc return

Replacing return value -1 to error code

Signed-off-by: Mugilraj Dhavachelvan <dmugil2000@...il.com>
---
 arch/x86/mm/kmmio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c
index be020a7bc414..15430520c232 100644
--- a/arch/x86/mm/kmmio.c
+++ b/arch/x86/mm/kmmio.c
@@ -386,7 +386,7 @@ static int add_kmmio_fault_page(unsigned long addr)
 
 	f = kzalloc(sizeof(*f), GFP_ATOMIC);
 	if (!f)
-		return -1;
+		return -ENOMEN;
 
 	f->count = 1;
 	f->addr = addr;
-- 
2.25.1