tty: xuartps: Use devm_kzalloc
Use the device managed interface for memory allocation, simplifying
error paths.
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 103ba88..8c07459 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -949,27 +949,26 @@
struct resource *res, *res2;
struct xuartps *xuartps_data;
- xuartps_data = kzalloc(sizeof(*xuartps_data), GFP_KERNEL);
+ xuartps_data = devm_kzalloc(&pdev->dev, sizeof(*xuartps_data),
+ GFP_KERNEL);
if (!xuartps_data)
return -ENOMEM;
xuartps_data->aperclk = devm_clk_get(&pdev->dev, "aper_clk");
if (IS_ERR(xuartps_data->aperclk)) {
dev_err(&pdev->dev, "aper_clk clock not found.\n");
- rc = PTR_ERR(xuartps_data->aperclk);
- goto err_out_free;
+ return PTR_ERR(xuartps_data->aperclk);
}
xuartps_data->refclk = devm_clk_get(&pdev->dev, "ref_clk");
if (IS_ERR(xuartps_data->refclk)) {
dev_err(&pdev->dev, "ref_clk clock not found.\n");
- rc = PTR_ERR(xuartps_data->refclk);
- goto err_out_free;
+ return PTR_ERR(xuartps_data->refclk);
}
rc = clk_prepare_enable(xuartps_data->aperclk);
if (rc) {
dev_err(&pdev->dev, "Unable to enable APER clock.\n");
- goto err_out_free;
+ return rc;
}
rc = clk_prepare_enable(xuartps_data->refclk);
if (rc) {
@@ -1020,8 +1019,6 @@
clk_disable_unprepare(xuartps_data->refclk);
err_out_clk_dis_aper:
clk_disable_unprepare(xuartps_data->aperclk);
-err_out_free:
- kfree(xuartps_data);
return rc;
}
@@ -1043,7 +1040,6 @@
port->mapbase = 0;
clk_disable_unprepare(xuartps_data->refclk);
clk_disable_unprepare(xuartps_data->aperclk);
- kfree(xuartps_data);
return rc;
}