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Message-ID: <20240628194350.542376-2-thorsten.blum@toblux.com>
Date: Fri, 28 Jun 2024 21:43:51 +0200
From: Thorsten Blum <thorsten.blum@...lux.com>
To: linux@...linux.org.uk
Cc: mingo@...nel.org,
sshegde@...ux.ibm.com,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
Thorsten Blum <thorsten.blum@...lux.com>
Subject: [PATCH] ARM, sched/topology: Check return value of kcalloc()
Check the return value of kcalloc() and return early if memory
allocation fails.
Compile-tested only.
Signed-off-by: Thorsten Blum <thorsten.blum@...lux.com>
---
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)
__cpu_capacity = kcalloc(nr_cpu_ids, sizeof(*__cpu_capacity),
GFP_NOWAIT);
+ if (unlikely(!__cpu_capacity)) {
+ pr_crit("Failed to allocate memory for __cpu_capacity\n");
+ return;
+ }
for_each_possible_cpu(cpu) {
const __be32 *rate;
--
2.45.2
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