linux-kernel - [PATCH] KVM: SVM: fix eno.cocci warnings

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Message-ID: <20170922221359.GA6397@lkp-wsm-ep2>
Date:   Sat, 23 Sep 2017 06:13:59 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Brijesh Singh <brijesh.singh@....com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, Brijesh Singh <brijesh.singh@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Joerg Roedel <joro@...tes.org>, Borislav Petkov <bp@...e.de>,
        Tom Lendacky <thomas.lendacky@....com>, x86@...nel.org
Subject: [PATCH] KVM: SVM: fix eno.cocci warnings

arch/x86/kvm/svm.c:5728:5-11: ERROR: allocation function on line 5727 returns NULL not ERR_PTR on failure

 The various basic memory allocation functions don't return ERR_PTR

Generated by: scripts/coccinelle/null/eno.cocci

Fixes: 16e737dd7c3c ("KVM: SVM: Add support for SEV LAUNCH_START command")
CC: Brijesh Singh <brijesh.singh@....com>
Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
---

 svm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -5725,7 +5725,7 @@ static void *copy_user_blob(u64 __user u
 		return ERR_PTR(-EINVAL);
 
 	data = kmalloc(len, GFP_KERNEL);
-	if (IS_ERR(data))
+	if (!data)
 		return ERR_PTR(-ENOMEM);
 
 	if (copy_from_user(data, (void __user *)(uintptr_t)uaddr, len))