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[24.85.107.15]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1fac10c8f1asm19227145ad.48.2024.06.28.12.44.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Jun 2024 12:44:23 -0700 (PDT) From: Thorsten Blum To: linux@armlinux.org.uk Cc: mingo@kernel.org, sshegde@linux.ibm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Thorsten Blum Subject: [PATCH] ARM, sched/topology: Check return value of kcalloc() Date: Fri, 28 Jun 2024 21:43:51 +0200 Message-ID: <20240628194350.542376-2-thorsten.blum@toblux.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Check the return value of kcalloc() and return early if memory allocation fails. Compile-tested only. Signed-off-by: Thorsten Blum --- arch/arm/kernel/topology.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c index 2336ee2aa44a..b77d1838e5a3 100644 --- a/arch/arm/kernel/topology.c +++ b/arch/arm/kernel/topology.c @@ -93,6 +93,10 @@ static void __init parse_dt_topology(void) =20 __cpu_capacity =3D kcalloc(nr_cpu_ids, sizeof(*__cpu_capacity), GFP_NOWAIT); + if (unlikely(!__cpu_capacity)) { + pr_crit("Failed to allocate memory for __cpu_capacity\n"); + return; + } =20 for_each_possible_cpu(cpu) { const __be32 *rate; --=20 2.45.2