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drm/xe/vm: bugfix in xe_vm_create_ioctl

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Fix xe_vm_create_ioctl routine not freeing the vm-id allocated to it
when the function fails.

Fixes: dd08ebf6c3 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Signed-off-by: Moti Haimovski <mhaimovski@habana.ai>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Tomer Tayar <ttayar@habana.ai>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240122102424.4008095-1-mhaimovski@habana.ai
(cherry picked from commit f6bf0424ca)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
This commit is contained in:
Moti Haimovski 2024-01-22 12:24:24 +02:00 committed by Thomas Hellström
parent c0e2508cb1
commit d186e51b0e
1 changed files with 14 additions and 9 deletions
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23
drivers/gpu/drm/xe/xe_vm.c
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@ -1855,10 +1855,8 @@ int xe_vm_create_ioctl(struct drm_device *dev, void *data,
mutex_lock(&xef->vm.lock);
err = xa_alloc(&xef->vm.xa, &id, vm, xa_limit_32b, GFP_KERNEL);
mutex_unlock(&xef->vm.lock);
if (err) {
xe_vm_close_and_put(vm);
return err;
}
if (err)
goto err_close_and_put;
if (xe->info.has_asid) {
mutex_lock(&xe->usm.lock);
@ -1866,11 +1864,9 @@ int xe_vm_create_ioctl(struct drm_device *dev, void *data,
XA_LIMIT(1, XE_MAX_ASID - 1),
&xe->usm.next_asid, GFP_KERNEL);
mutex_unlock(&xe->usm.lock);
if (err < 0) {
xe_vm_close_and_put(vm);
return err;
}
err = 0;
if (err < 0)
goto err_free_id;
vm->usm.asid = asid;
}
@ -1888,6 +1884,15 @@ int xe_vm_create_ioctl(struct drm_device *dev, void *data,
#endif
return 0;
err_free_id:
mutex_lock(&xef->vm.lock);
xa_erase(&xef->vm.xa, id);
mutex_unlock(&xef->vm.lock);
err_close_and_put:
xe_vm_close_and_put(vm);
return err;
}
int xe_vm_destroy_ioctl(struct drm_device *dev, void *data,