From 9de10ffb54565b4d427adf1037579617e73cb8bf Mon Sep 17 00:00:00 2001 From: Jayachandran C Date: Tue, 29 Apr 2014 20:07:43 +0530 Subject: [PATCH] MIPS: Netlogic: Warn on invalid irq Warn and return if invalid IRQ is passed to nlm_set_pic_extra_ack. Signed-off-by: Jayachandran C Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6862/ Signed-off-by: Ralf Baechle --- arch/mips/netlogic/common/irq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/mips/netlogic/common/irq.c b/arch/mips/netlogic/common/irq.c index 5afc4b7fce0f..c100b9afa0ab 100644 --- a/arch/mips/netlogic/common/irq.c +++ b/arch/mips/netlogic/common/irq.c @@ -203,6 +203,8 @@ void nlm_set_pic_extra_ack(int node, int irq, void (*xack)(struct irq_data *)) xirq = nlm_irq_to_xirq(node, irq); pic_data = irq_get_handler_data(xirq); + if (WARN_ON(!pic_data)) + return; pic_data->extra_ack = xack; } -- 2.20.1