diff options
| author | Igor Opaniuk <igor.opaniuk@toradex.com> | 2020-11-13 14:11:10 +0200 |
|---|---|---|
| committer | Igor Opaniuk <igor.opaniuk@toradex.com> | 2020-11-13 14:17:32 +0200 |
| commit | 3b59d4725be760cd276094079b4fbe7bd44e1464 (patch) | |
| tree | 37a4892c12efe64a69453ecdb694866dd18dc4f5 /drivers/infiniband/core/device.c | |
| parent | 4d47b797d6bb1db34ddf702f2cf78104be135a8f (diff) | |
| parent | 70d1232fdbe28e4c765c4cfc3cc5c7580959d5e0 (diff) | |
Merge commit '70d1232fdbe28e4c765c4cfc3cc5c7580959d5e0' into toradex_5.4-2.1.x-imx
Update 5.4-2.1.x-imx to v5.4.74 from [1].
[1] https://github.com/Freescale/linux-fslc
Diffstat (limited to 'drivers/infiniband/core/device.c')
| -rw-r--r-- | drivers/infiniband/core/device.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 10ae6c6eab0a..59dc9f3cfb37 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -1330,6 +1330,10 @@ out: return ret; } +static void prevent_dealloc_device(struct ib_device *ib_dev) +{ +} + /** * ib_register_device - Register an IB device with IB core * @device:Device to register @@ -1397,11 +1401,11 @@ int ib_register_device(struct ib_device *device, const char *name) * possibility for a parallel unregistration along with this * error flow. Since we have a refcount here we know any * parallel flow is stopped in disable_device and will see the - * NULL pointers, causing the responsibility to + * special dealloc_driver pointer, causing the responsibility to * ib_dealloc_device() to revert back to this thread. */ dealloc_fn = device->ops.dealloc_driver; - device->ops.dealloc_driver = NULL; + device->ops.dealloc_driver = prevent_dealloc_device; ib_device_put(device); __ib_unregister_device(device); device->ops.dealloc_driver = dealloc_fn; @@ -1449,7 +1453,8 @@ static void __ib_unregister_device(struct ib_device *ib_dev) * Drivers using the new flow may not call ib_dealloc_device except * in error unwind prior to registration success. */ - if (ib_dev->ops.dealloc_driver) { + if (ib_dev->ops.dealloc_driver && + ib_dev->ops.dealloc_driver != prevent_dealloc_device) { WARN_ON(kref_read(&ib_dev->dev.kobj.kref) <= 1); ib_dealloc_device(ib_dev); } |