Commit e93d7cf4 authored Nov 27, 2023 by Kunwu Chan Committed by Greg Kroah-Hartman Jan 25, 2024

powerpc/powernv: Add a null pointer check in opal_event_init()



[ Upstream commit 8649829a1dd25199bbf557b2621cedb4bf9b3050 ]

kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure.

Fixes: 2717a33d ("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


Signed-off-by: Sasha Levin <sashal@kernel.org>

parent f84c1446

arch/powerpc/platforms/powernv/opal-irqchip.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -278,6 +278,8 @@ 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);