hsi: use kmemdup

Use kmemdup when some other buffer is immediately copied into allocated
region. It replaces call to allocation followed by memcpy, by a single
call to kmemdup.

Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>

diff --git a/drivers/hsi/hsi.c b/drivers/hsi/hsi.c
index df380d5..d7ce07a 100644 (file)
--- a/drivers/hsi/hsi.c
+++ b/drivers/hsi/hsi.c
@@ -90,19 +90,19 @@ struct hsi_client *hsi_new_client(struct hsi_port *port,
        cl->tx_cfg = info->tx_cfg;
        if (cl->tx_cfg.channels) {
                size = cl->tx_cfg.num_channels * sizeof(*cl->tx_cfg.channels);
-               cl->tx_cfg.channels = kzalloc(size , GFP_KERNEL);
+               cl->tx_cfg.channels = kmemdup(info->tx_cfg.channels, size,
+                                             GFP_KERNEL);
                if (!cl->tx_cfg.channels)
                        goto err_tx;
-               memcpy(cl->tx_cfg.channels, info->tx_cfg.channels, size);
        }
 
        cl->rx_cfg = info->rx_cfg;
        if (cl->rx_cfg.channels) {
                size = cl->rx_cfg.num_channels * sizeof(*cl->rx_cfg.channels);
-               cl->rx_cfg.channels = kzalloc(size , GFP_KERNEL);
+               cl->rx_cfg.channels = kmemdup(info->rx_cfg.channels, size,
+                                             GFP_KERNEL);
                if (!cl->rx_cfg.channels)
                        goto err_rx;
-               memcpy(cl->rx_cfg.channels, info->rx_cfg.channels, size);
        }
 
        cl->device.bus = &hsi_bus_type;