Merge remote-tracking branches 'spi/topic/rockchip', 'spi/topic/rspi', 'spi/topic...

[GitHub/moto-9609/android_kernel_motorola_exynos9610.git] / drivers / spi / spi.c

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 1861255866d78dfad51a879f42fd3541a75bece6..f274df9e0e3e2265c723139bb2b2f92ad72e32ba 100644 (file)
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -621,8 +621,10 @@ void spi_unregister_device(struct spi_device *spi)
        if (!spi)
                return;
 
-       if (spi->dev.of_node)
+       if (spi->dev.of_node) {
                of_node_clear_flag(spi->dev.of_node, OF_POPULATED);
+               of_node_put(spi->dev.of_node);
+       }
        if (ACPI_COMPANION(&spi->dev))
                acpi_device_clear_enumerated(ACPI_COMPANION(&spi->dev));
        device_unregister(&spi->dev);
@@ -672,7 +674,7 @@ int spi_register_board_info(struct spi_board_info const *info, unsigned n)
        if (!n)
                return -EINVAL;
 
-       bi = kzalloc(n * sizeof(*bi), GFP_KERNEL);
+       bi = kcalloc(n, sizeof(*bi), GFP_KERNEL);
        if (!bi)
                return -ENOMEM;
 
@@ -805,12 +807,12 @@ static int __spi_map_msg(struct spi_master *master, struct spi_message *msg)
        if (master->dma_tx)
                tx_dev = master->dma_tx->device->dev;
        else
-               tx_dev = &master->dev;
+               tx_dev = master->dev.parent;
 
        if (master->dma_rx)
                rx_dev = master->dma_rx->device->dev;
        else
-               rx_dev = &master->dev;
+               rx_dev = master->dev.parent;
 
        list_for_each_entry(xfer, &msg->transfers, transfer_list) {
                if (!master->can_dma(master, msg->spi, xfer))
@@ -852,12 +854,12 @@ static int __spi_unmap_msg(struct spi_master *master, struct spi_message *msg)
        if (master->dma_tx)
                tx_dev = master->dma_tx->device->dev;
        else
-               tx_dev = &master->dev;
+               tx_dev = master->dev.parent;
 
        if (master->dma_rx)
                rx_dev = master->dma_rx->device->dev;
        else
-               rx_dev = &master->dev;
+               rx_dev = master->dev.parent;
 
        list_for_each_entry(xfer, &msg->transfers, transfer_list) {
                if (!master->can_dma(master, msg->spi, xfer))
@@ -1615,11 +1617,13 @@ of_register_spi_device(struct spi_master *master, struct device_node *nc)
        if (rc) {
                dev_err(&master->dev, "spi_device register error %s\n",
                        nc->full_name);
-               goto err_out;
+               goto err_of_node_put;
        }
 
        return spi;
 
+err_of_node_put:
+       of_node_put(nc);
 err_out:
        spi_dev_put(spi);
        return ERR_PTR(rc);