int nvmem_cell_read_u32(struct device *dev, const char *cell_id, u32 *val) { struct nvmem_cell *cell; void *buf; size_t len; cell = nvmem_cell_get(dev, cell_id); if (IS_ERR(cell)) return PTR_ERR(cell); buf = nvmem_cell_read(cell, &len); if (IS_ERR(buf)) { ...