[tip:irq/urgent] genirq: Fix missing return value in irq_destroy_ipi()

[tip-bot for Matt Redfearn <tipbot@zytor.com>]

Commit-ID:  59fa5860204ffc95128d60cba9f54f9740a42c7d
Gitweb:     http://git.kernel.org/tip/59fa5860204ffc95128d60cba9f54f9740a42c7d
Author:     Matt Redfearn <matt.redfearn@imgtec.com>
AuthorDate: Tue, 24 May 2016 11:42:30 +0100
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Tue, 24 May 2016 15:40:14 +0200

genirq: Fix missing return value in irq_destroy_ipi()

Commit 7cec18a3906b changed the return type of irq_destroy_ipi to int, but
missed adding a value to one return statement. Fix this to silence the
resulting compiler warning:

kernel/irq/ipi.c In function ‘irq_destroy_ipi’:
kernel/irq/ipi.c:128:3: warning: ‘return’ with no value, in function returning non-void [-Wreturn-type]

Fixes: 7cec18a3906b "genirq: Add error code reporting to irq_{reserve,destroy}_ipi"
Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: linux-mips@linux-mips.org
Link: http://lkml.kernel.org/r/1464086550-24734-1-git-send-email-matt.redfearn@imgtec.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

---
 kernel/irq/ipi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/ipi.c b/kernel/irq/ipi.c
index c427422..89b49f6 100644
--- a/kernel/irq/ipi.c
+++ b/kernel/irq/ipi.c
@@ -125,7 +125,7 @@ int irq_destroy_ipi(unsigned int irq, const struct cpumask *dest)
 
 	domain = data->domain;
 	if (WARN_ON(domain == NULL))
-		return;
+		return -EINVAL;
 
 	if (!irq_domain_is_ipi(domain)) {
 		pr_warn("Trying to destroy a non IPI domain!\n");