From 8649829a1dd25199bbf557b2621cedb4bf9b3050 Mon Sep 17 00:00:00 2001
From: Kunwu Chan <chentao@kylinos.cn>
Date: Mon, 27 Nov 2023 11:07:55 +0800
Subject: [PATCH] powerpc/powernv: Add a null pointer check in
opal_event_init()
References: bsc#1065729
Patch-mainline: v6.8-rc1
Git-commit: 8649829a1dd25199bbf557b2621cedb4bf9b3050
kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.
Fixes: 2717a33d6074 ("powerpc/opal-irqchip: Use interrupt names if present")
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231127030755.1546750-1-chentao@kylinos.cn
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
arch/powerpc/platforms/powernv/opal-irqchip.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/platforms/powernv/opal-irqchip.c b/arch/powerpc/platforms/powernv/opal-irqchip.c
--- a/arch/powerpc/platforms/powernv/opal-irqchip.c
+++ b/arch/powerpc/platforms/powernv/opal-irqchip.c
@@ -275,6 +275,8 @@ int __init opal_event_init(void)
else
name = kasprintf(GFP_KERNEL, "opal");
+ if (!name)
+ continue;
/* Install interrupt handler */
rc = request_irq(virq, opal_interrupt, IRQF_TRIGGER_LOW,
name, NULL);
--
2.42.0