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authorLuca Coelho <luciano.coelho@intel.com>2016-05-10 10:30:56 +0300
committerLuca Coelho <luciano.coelho@intel.com>2016-05-10 10:30:56 +0300
commitbae6692c24236d0203f88a444986d86437a858fa (patch)
tree0f9bee1250af3046fa46049736b615b81e60f56e /drivers/gpu/drm/amd/amdkfd/kfd_module.c
parent46167a8fd4248533ad15867e6988ff20e76de641 (diff)
parent57fbcce37be7c1d2622b56587c10ade00e96afa3 (diff)
Merge tag 'mac80211-next-for-davem-2016-04-13' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next into master
To synchronize with Kalle, here's just a big change that affects all drivers - removing the duplicated enum ieee80211_band and replacing it by enum nl80211_band. On top of that, just a small documentation update.
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_module.c')
-rw-r--r--drivers/gpu/drm/amd/amdkfd/kfd_module.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_module.c b/drivers/gpu/drm/amd/amdkfd/kfd_module.c
index ca8410e8683d..850a5623661f 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_module.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_module.c
@@ -59,18 +59,23 @@ module_param(send_sigterm, int, 0444);
MODULE_PARM_DESC(send_sigterm,
"Send sigterm to HSA process on unhandled exception (0 = disable, 1 = enable)");
-bool kgd2kfd_init(unsigned interface_version, const struct kgd2kfd_calls **g2f)
+static int amdkfd_init_completed;
+
+int kgd2kfd_init(unsigned interface_version, const struct kgd2kfd_calls **g2f)
{
+ if (!amdkfd_init_completed)
+ return -EPROBE_DEFER;
+
/*
* Only one interface version is supported,
* no kfd/kgd version skew allowed.
*/
if (interface_version != KFD_INTERFACE_VERSION)
- return false;
+ return -EINVAL;
*g2f = &kgd2kfd;
- return true;
+ return 0;
}
EXPORT_SYMBOL(kgd2kfd_init);
@@ -111,6 +116,8 @@ static int __init kfd_module_init(void)
kfd_process_create_wq();
+ amdkfd_init_completed = 1;
+
dev_info(kfd_device, "Initialized module\n");
return 0;
@@ -125,6 +132,8 @@ err_pasid:
static void __exit kfd_module_exit(void)
{
+ amdkfd_init_completed = 0;
+
kfd_process_destroy_wq();
kfd_topology_shutdown();
kfd_chardev_exit();