diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index 4f7b275f2f7b0fdbb488055057c3291a1aab3a70..7d4974b83af7821649c7eff1f75ee4d0b05758e6 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -121,13 +121,9 @@ static int kfd_open(struct inode *inode, struct file *filep)
 	if (IS_ERR(process))
 		return PTR_ERR(process);
 
-	process->is_32bit_user_mode = is_32bit_user_mode;
-
 	dev_dbg(kfd_device, "process %d opened, compat mode (32 bit) - %d\n",
 		process->pasid, process->is_32bit_user_mode);
 
-	kfd_init_apertures(process);
-
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c b/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c
index 66df4da01c29a200d64a6a801d8d250231d7d269..e64aa99e5e416349071f3c0906be347ed42e3e53 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_flat_memory.c
@@ -299,13 +299,13 @@ int kfd_init_apertures(struct kfd_process *process)
 	struct kfd_dev *dev;
 	struct kfd_process_device *pdd;
 
-	mutex_lock(&process->mutex);
-
 	/*Iterating over all devices*/
 	while ((dev = kfd_topology_enum_kfd_devices(id)) != NULL &&
 		id < NUM_OF_SUPPORTED_GPUS) {
 
 		pdd = kfd_get_process_device_data(dev, process, 1);
+		if (!pdd)
+			return -1;
 
 		/*
 		 * For 64 bit process aperture will be statically reserved in
@@ -348,8 +348,6 @@ int kfd_init_apertures(struct kfd_process *process)
 		id++;
 	}
 
-	mutex_unlock(&process->mutex);
-
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
index b85eb0b830b41d5d894efebb2a3e6fab83ca7552..3c76ef05cbcf798483b482ac09b7bc62223d92c5 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -26,6 +26,8 @@
 #include <linux/slab.h>
 #include <linux/amd-iommu.h>
 #include <linux/notifier.h>
+#include <linux/compat.h>
+
 struct mm_struct;
 
 #include "kfd_priv.h"
@@ -285,8 +287,15 @@ static struct kfd_process *create_process(const struct task_struct *thread)
 	if (err != 0)
 		goto err_process_pqm_init;
 
+	/* init process apertures*/
+	process->is_32bit_user_mode = is_compat_task();
+	if (kfd_init_apertures(process) != 0)
+		goto err_init_apretures;
+
 	return process;
 
+err_init_apretures:
+	pqm_uninit(&process->pqm);
 err_process_pqm_init:
 	hash_del_rcu(&process->kfd_processes);
 	synchronize_rcu();