From 25f6e89bedd29cc49bfa0d55497e91a671b9ae6e Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Thu, 30 Jul 2009 23:21:18 +0200 Subject: [PATCH] x86: Remove superfluous NULL pointer check in destroy_irq() This takes care of the following entry from Dan's list: arch/x86/kernel/apic/io_apic.c +3241 destroy_irq(11) warning: variable derefenced before check 'desc' Reported-by: Dan Carpenter Signed-off-by: Bartlomiej Zolnierkiewicz Cc: Jonathan Corbet Cc: Eugene Teo Cc: Julia Lawall LKML-Reference: <200907302321.19086.bzolnier@gmail.com> Signed-off-by: Ingo Molnar --- arch/x86/kernel/apic/io_apic.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index cf51b0b58c5..7e92a9212fd 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -3185,8 +3185,7 @@ void destroy_irq(unsigned int irq) cfg = desc->chip_data; dynamic_irq_cleanup(irq); /* connect back irq_cfg */ - if (desc) - desc->chip_data = cfg; + desc->chip_data = cfg; free_irte(irq); spin_lock_irqsave(&vector_lock, flags); -- 2.39.2