From 85fb534e27eca3f433a7b53bb78cf208b92bf190 Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Tue, 15 Mar 2011 17:08:28 +0100 Subject: [S390] css: move chsc_private to drv_data Use the subchannels drv_data to access chsc_private for chsc subchannels. Note: Also set the drv_data prior to the cio_enable_subchannel call, since we can receive an interrupt the moment we enable the subchannel and the IRQ handler relies on this data. Signed-off-by: Sebastian Ott Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/chsc_sch.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c index 3c3f3ffe217..09c2ea84a57 100644 --- a/drivers/s390/cio/chsc_sch.c +++ b/drivers/s390/cio/chsc_sch.c @@ -50,7 +50,7 @@ MODULE_LICENSE("GPL"); static void chsc_subchannel_irq(struct subchannel *sch) { - struct chsc_private *private = sch->private; + struct chsc_private *private = dev_get_drvdata(&sch->dev); struct chsc_request *request = private->request; struct irb *irb = (struct irb *)&S390_lowcore.irb; @@ -80,13 +80,14 @@ static int chsc_subchannel_probe(struct subchannel *sch) private = kzalloc(sizeof(*private), GFP_KERNEL); if (!private) return -ENOMEM; + dev_set_drvdata(&sch->dev, private); ret = cio_enable_subchannel(sch, (u32)(unsigned long)sch); if (ret) { CHSC_MSG(0, "Failed to enable 0.%x.%04x: %d\n", sch->schid.ssid, sch->schid.sch_no, ret); + dev_set_drvdata(&sch->dev, NULL); kfree(private); } else { - sch->private = private; if (dev_get_uevent_suppress(&sch->dev)) { dev_set_uevent_suppress(&sch->dev, 0); kobject_uevent(&sch->dev.kobj, KOBJ_ADD); @@ -100,8 +101,8 @@ static int chsc_subchannel_remove(struct subchannel *sch) struct chsc_private *private; cio_disable_subchannel(sch); - private = sch->private; - sch->private = NULL; + private = dev_get_drvdata(&sch->dev); + dev_set_drvdata(&sch->dev, NULL); if (private->request) { complete(&private->request->completion); put_device(&sch->dev); @@ -241,7 +242,7 @@ static int chsc_async(struct chsc_async_area *chsc_area, chsc_area->header.key = PAGE_DEFAULT_KEY >> 4; while ((sch = chsc_get_next_subchannel(sch))) { spin_lock(sch->lock); - private = sch->private; + private = dev_get_drvdata(&sch->dev); if (private->request) { spin_unlock(sch->lock); ret = -EBUSY; -- cgit v1.2.3-70-g09d2