Hi,
Li Zefan <lizf@xxxxxxxxxxxxxx> writes:
> I noticed the following issue in the code:
>
> in drivers/ata/libata-acpi.c:
>
> static void ata_acpi_handle_hotplug(struct ata_port *ap, struct ata_device *dev,
> u32 event)
> {
> ...
> spin_lock_irqsave(ap->lock, flags);
> ...
>
> if (dev) {
> if (dev->sdev)
> kobj = &dev->sdev->sdev_gendev.kobj;
> } else
> kobj = &ap->dev->kobj;
>
> if (kobj) {
> sprintf(event_string, "BAY_EVENT=%d", event);
> kobject_uevent_env(kobj, KOBJ_CHANGE, envp);
> }
>
> spin_unlock_irqrestore(ap->lock, flags);
> ...
> }
>
> and kobject_uevent_env() calls kzalloc(..., GFP_KERNEL);
Fixed by commit ae6c23c4e1ec9720b99e1e6850fe47c6c7fddbb3 "Fixups to ATA
ACPI hotplug" by Matthew Garrett.
Hannes
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