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| author | Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com> | 2014-07-14 19:11:48 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-07-16 10:48:12 +0200 |
| commit | 666e68e0dde826ae146b980099f1719f74fa968c (patch) | |
| tree | 5eb5b109401b195ff6f17064a74dcda7b9116b50 /drivers/s390/crypto | |
| parent | s390/ptrace: fix PSW mask check (diff) | |
| download | linux-666e68e0dde826ae146b980099f1719f74fa968c.tar.xz linux-666e68e0dde826ae146b980099f1719f74fa968c.zip | |
s390/zcrypt: improve device probing for zcrypt adapter cards
Improve device probing process for zcrypt adapters to
transmit service request during registration process.
Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/crypto')
| -rw-r--r-- | drivers/s390/crypto/ap_bus.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 69ef4f8cfac8..4038437ff033 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -901,10 +901,15 @@ static int ap_device_probe(struct device *dev) int rc; ap_dev->drv = ap_drv; + + spin_lock_bh(&ap_device_list_lock); + list_add(&ap_dev->list, &ap_device_list); + spin_unlock_bh(&ap_device_list_lock); + rc = ap_drv->probe ? ap_drv->probe(ap_dev) : -ENODEV; - if (!rc) { + if (rc) { spin_lock_bh(&ap_device_list_lock); - list_add(&ap_dev->list, &ap_device_list); + list_del_init(&ap_dev->list); spin_unlock_bh(&ap_device_list_lock); } return rc; |