I ran into a crash during booting with the latest 3.11.0-rc1. After
investigation, the crash was triggered by the patch below where the "pp"
is NULL in some cases.
Suravee
commit b29900e62598cecd519c9ab2b8e4d03f8ebf702d
Author: Alexander Gordeev <agord...@redhat.com>
Date: Wed May 22 08:53:48 2013 +0900
AHCI: Make distinct names for ports in /proc/interrupts
Currently all interrupts assigned to AHCI ports show up in
'/proc/interrupts' as 'ahci'. This fix adds port numbers as
suffixes and hence makes the descriptions distinct.
Reported-by: Jan Beulich <jbeul...@suse.com>
Signed-off-by: Alexander Gordeev <agord...@redhat.com>
Signed-off-by: Tejun Heo <t...@kernel.org>
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 251e57d..4d1c672 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1142,9 +1142,11 @@ int ahci_host_activate(struct ata_host *host, int
irq, unsigned int n_msis)
return rc;
for (i = 0; i < host->n_ports; i++) {
+ struct ahci_port_priv *pp = host->ports[i]->private_data;
+
rc = devm_request_threaded_irq(host->dev,
irq + i, ahci_hw_interrupt, ahci_thread_fn,
IRQF_SHARED,
- dev_driver_string(host->dev), host->ports[i]);
+ pp->irq_desc, host->ports[i]);
if (rc)
goto out_free_irqs;
}
--
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