if (vmalloced_buf) {
desc_len = min_t(int, max_seg_size, PAGE_SIZE);
sgs = DIV_ROUND_UP(len + offset_in_page(buf), desc_len);
- } else {
+ } else if (virt_addr_valid(buf)) {
desc_len = min_t(int, max_seg_size, master->max_dma_len);
sgs = DIV_ROUND_UP(len, desc_len);
+ } else {
+ return -EINVAL;
}
ret = sg_alloc_table(sgt, sgs, GFP_KERNEL);
* spi_transfer_one_message - Default implementation of transfer_one_message()
*
* This is a standard implementation of transfer_one_message() for
- * drivers which impelment a transfer_one() operation. It provides
+ * drivers which implement a transfer_one() operation. It provides
* standard handling of delays and chip select management.
*/
static int spi_transfer_one_message(struct spi_master *master,
master->num_chipselect = 1;
master->dev.class = &spi_master_class;
master->dev.parent = dev;
+ pm_suspend_ignore_children(&master->dev, true);
spi_master_set_devdata(master, &master[1]);
return master;