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Subject[S390] Improve AP bus device removal.
From: Ralph Wuerthner <rwuerthn@de.ibm.com>

[S390] Improve AP bus device removal.

Added a call to device_unregister() in ap_scan_bus() to actively
remove unavailable AP bus devices with every bus scan. Previously
devices were only removed in ap_queue_message() or __ap_poll_all().

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

drivers/s390/crypto/ap_bus.c | 7 ++++++-
1 files changed, 6 insertions(+), 1 deletion(-)

diff -urpN linux-2.6/drivers/s390/crypto/ap_bus.c linux-2.6-patched/drivers/s390/crypto/ap_bus.c
--- linux-2.6/drivers/s390/crypto/ap_bus.c 2006-10-26 10:43:46.000000000 +0200
+++ linux-2.6-patched/drivers/s390/crypto/ap_bus.c 2006-10-26 10:44:05.000000000 +0200
@@ -739,11 +739,16 @@ static void ap_scan_bus(void *data)
dev = bus_find_device(&ap_bus_type, NULL,
(void *)(unsigned long)qid,
__ap_scan_bus);
+ rc = ap_query_queue(qid, &queue_depth, &device_type);
+ if (dev && rc) {
+ put_device(dev);
+ device_unregister(dev);
+ continue;
+ }
if (dev) {
put_device(dev);
continue;
}
- rc = ap_query_queue(qid, &queue_depth, &device_type);
if (rc)
continue;
rc = ap_init_queue(qid);
-
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