23 static int check_effect_access(struct ff_device *ff, int effect_id,  in check_effect_access()  argument
26 	if (effect_id < 0 || effect_id >= ff->max_effects ||  in check_effect_access()
27 	    !ff->effect_owners[effect_id])  in check_effect_access()
30 	if (file && ff->effect_owners[effect_id] != file)  in check_effect_access()
50 static int compat_effect(struct ff_device *ff, struct ff_effect *effect)  in compat_effect()  argument
56 		if (!test_bit(FF_PERIODIC, ff->ffbit))  in compat_effect()
94 	struct ff_device *ff = dev->ff;  in input_ff_upload()  local
116 	if (!test_bit(effect->type, ff->ffbit)) {  in input_ff_upload()
117 		error = compat_effect(ff, effect);  in input_ff_upload()
122 	guard(mutex)(&ff->mutex);  in input_ff_upload()
125 		for (id = 0; id < ff->max_effects; id++)  in input_ff_upload()
126 			if (!ff->effect_owners[id])  in input_ff_upload()
129 		if (id >= ff->max_effects)  in input_ff_upload()
138 		error = check_effect_access(ff, id, file);  in input_ff_upload()
142 		old = &ff->effects[id];  in input_ff_upload()
148 	error = ff->upload(dev, effect, old);  in input_ff_upload()
153 		ff->effects[id] = *effect;  in input_ff_upload()
154 		ff->effect_owners[id] = file;  in input_ff_upload()
168 	struct ff_device *ff = dev->ff;  in erase_effect()  local
171 	error = check_effect_access(ff, effect_id, file);  in erase_effect()
176 		ff->playback(dev, effect_id, 0);  in erase_effect()
177 		ff->effect_owners[effect_id] = NULL;  in erase_effect()
180 	if (ff->erase) {  in erase_effect()
181 		error = ff->erase(dev, effect_id);  in erase_effect()
184 				ff->effect_owners[effect_id] = file;  in erase_effect()
205 	struct ff_device *ff = dev->ff;  in input_ff_erase()  local
210 	guard(mutex)(&ff->mutex);  in input_ff_erase()
226 	struct ff_device *ff = dev->ff;  in input_ff_flush()  local
231 	guard(mutex)(&ff->mutex);  in input_ff_flush()
233 	for (i = 0; i < ff->max_effects; i++)  in input_ff_flush()
250 	struct ff_device *ff = dev->ff;  in input_ff_event()  local
260 		ff->set_gain(dev, value);  in input_ff_event()
267 		ff->set_autocenter(dev, value);  in input_ff_event()
271 		if (check_effect_access(ff, code, NULL) == 0)  in input_ff_event()
272 			ff->playback(dev, code, value);  in input_ff_event()
288  * Once ff device is created you need to setup its upload, erase,
305 	struct ff_device *ff __free(kfree) =  in input_ff_create()
306 		kzalloc(struct_size(ff, effect_owners, max_effects),  in input_ff_create()
308 	if (!ff)  in input_ff_create()
311 	ff->effects = kcalloc(max_effects, sizeof(*ff->effects), GFP_KERNEL);  in input_ff_create()
312 	if (!ff->effects)  in input_ff_create()
315 	ff->max_effects = max_effects;  in input_ff_create()
316 	mutex_init(&ff->mutex);  in input_ff_create()
322 	/* Copy "true" bits into ff device bitmap */  in input_ff_create()
324 		__set_bit(i, ff->ffbit);  in input_ff_create()
327 	if (test_bit(FF_PERIODIC, ff->ffbit))  in input_ff_create()
330 	dev->ff = no_free_ptr(ff);  in input_ff_create()
346 	struct ff_device *ff = dev->ff;  in input_ff_destroy()  local
349 	if (ff) {  in input_ff_destroy()
350 		if (ff->destroy)  in input_ff_destroy()
351 			ff->destroy(ff);  in input_ff_destroy()
352 		kfree(ff->private);  in input_ff_destroy()
353 		kfree(ff->effects);  in input_ff_destroy()
354 		kfree(ff);  in input_ff_destroy()
355 		dev->ff = NULL;  in input_ff_destroy()