From 8649829a1dd25199bbf557b2621cedb4bf9b3050 Mon Sep 17 00:00:00 2001 From: Kunwu Chan Date: Mon, 27 Nov 2023 11:07:55 +0800 Subject: powerpc/powernv: Add a null pointer check in opal_event_init() 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 Signed-off-by: Michael Ellerman Link: https://msgid.link/20231127030755.1546750-1-chentao@kylinos.cn --- arch/powerpc/platforms/powernv/opal-irqchip.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/powerpc') diff --git a/arch/powerpc/platforms/powernv/opal-irqchip.c b/arch/powerpc/platforms/powernv/opal-irqchip.c index f9a7001dacb7..56a1f7ce78d2 100644 --- 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(r->start, opal_interrupt, r->flags & IRQD_TRIGGER_MASK, name, NULL); -- cgit