Commit-ID:  735c09524d3e7c92315e8e2699a1b9acb4fb415c
Gitweb:     http://git.kernel.org/tip/735c09524d3e7c92315e8e2699a1b9acb4fb415c
Author:     Thomas Gleixner <[email protected]>
AuthorDate: Tue, 20 Jun 2017 01:37:26 +0200
Committer:  Thomas Gleixner <[email protected]>
CommitDate: Thu, 22 Jun 2017 18:21:16 +0200

genirq/cpuhotplug: Dont claim success on error

In case the affinity of an interrupt was broken, a printk is emitted.

But if the affinity cannot be set at all due to a missing
irq_set_affinity() callback or due to a failing callback, the message is
still printed preceeded by a warning/error.

That makes no sense whatsoever.

Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Marc Zyngier <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Keith Busch <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]

---
 kernel/irq/cpuhotplug.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/irq/cpuhotplug.c b/kernel/irq/cpuhotplug.c
index 7051398..9c5521b 100644
--- a/kernel/irq/cpuhotplug.c
+++ b/kernel/irq/cpuhotplug.c
@@ -37,11 +37,14 @@ static bool migrate_one_irq(struct irq_desc *desc)
        c = irq_data_get_irq_chip(d);
        if (!c->irq_set_affinity) {
                pr_debug("IRQ%u: unable to set affinity\n", d->irq);
+               ret = false;
        } else {
                int r = irq_do_set_affinity(d, affinity, false);
-               if (r)
+               if (r) {
                        pr_warn_ratelimited("IRQ%u: set affinity failed(%d).\n",
                                            d->irq, r);
+                       ret = false;
+               }
        }
 
        return ret;

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