This is a note to let you know that I've just added the patch titled
powerpc/powernv: Add a null pointer check in opal_event_init()
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
powerpc-powernv-add-a-null-pointer-check-in-opal_eve.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 160dd27ccb11445c290901e042aa7207a0ee6810
Author: Kunwu Chan <chentao@xxxxxxxxxx>
Date: Mon Nov 27 11:07:55 2023 +0800
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: 2717a33d6074 ("powerpc/opal-irqchip: Use interrupt names if present")
Signed-off-by: Kunwu Chan <chentao@xxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Link: https://msgid.link/20231127030755.1546750-1-chentao@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/powerpc/platforms/powernv/opal-irqchip.c b/arch/powerpc/platforms/powernv/opal-irqchip.c
index bc97770a67db..e71f2111c8c0 100644
--- a/arch/powerpc/platforms/powernv/opal-irqchip.c
+++ b/arch/powerpc/platforms/powernv/opal-irqchip.c
@@ -282,6 +282,8 @@ 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);
