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drm: Unify and fix idr error handling 

The error handling code w.r.t. idr usage looks inconsistent.

In the case of drm_mode_object_get() and drm_ctxbitmap_next() the error
handling is also incomplete.

Unify the code to follow the same pattern always.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Ville Syrjälä 2012-03-15 19:58:31 +02:00 committed by Dave Airlie
parent 343d4a79fd
commit f1ae126cdf
4 changed files with 12 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/drm_context.c
View File

@ -85,11 +85,12 @@ again:
mutex_lock(&dev->struct_mutex);
ret = idr_get_new_above(&dev->ctx_idr, NULL,
DRM_RESERVED_CONTEXTS, &new_id);
if (ret == -EAGAIN) {
mutex_unlock(&dev->struct_mutex);
goto again;
}
mutex_unlock(&dev->struct_mutex);
if (ret == -EAGAIN)
goto again;
else if (ret)
return ret;
return new_id;
}

4
drivers/gpu/drm/drm_crtc.c
View File

@ -227,7 +227,7 @@ static int drm_mode_object_get(struct drm_device *dev,
again:
if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
DRM_ERROR("Ran out memory getting a mode number\n");
return -EINVAL;
return -ENOMEM;
}
mutex_lock(&dev->mode_config.idr_mutex);
@ -235,6 +235,8 @@ again:
mutex_unlock(&dev->mode_config.idr_mutex);
if (ret == -EAGAIN)
goto again;
else if (ret)
return ret;
obj->id = new_id;
obj->type = obj_type;

6
drivers/gpu/drm/drm_gem.c
View File

@ -272,8 +272,7 @@ again:
spin_unlock(&file_priv->table_lock);
if (ret == -EAGAIN)
goto again;
if (ret != 0)
else if (ret)
return ret;
drm_gem_object_handle_reference(obj);
@ -456,8 +455,7 @@ again:
if (ret == -EAGAIN)
goto again;
if (ret != 0)
else if (ret)
goto err;
/* Allocate a reference for the name table. */

5
drivers/gpu/drm/drm_stub.c
View File

@ -122,11 +122,10 @@ again:
ret = idr_get_new_above(&drm_minors_idr, NULL,
base, &new_id);
mutex_unlock(&dev->struct_mutex);
if (ret == -EAGAIN) {
if (ret == -EAGAIN)
goto again;
} else if (ret) {
else if (ret)
return ret;
}
if (new_id >= limit) {
idr_remove(&drm_minors_idr, new_id);