clk: imx: scu: fix memleak on platform_device_add() fails

No error handling is performed when platform_device_add()
fails. Add error processing before return, and modified
the return value.

Fixes: 77d8f3068c63 ("clk: imx: scu: add two cells binding support")
Signed-off-by: Lin Yujun <linyujun809@huawei.com>
Link: https://lore.kernel.org/r/20220914033206.98046-1-linyujun809@huawei.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c
index c56e406138dbe28a7dff5d1c987e22a58ba75b29..1e6870f3671f6b0b15a31a38d9d3e6d1ec54b298 100644 (file)
--- a/drivers/clk/imx/clk-scu.c
+++ b/drivers/clk/imx/clk-scu.c
@@ -695,7 +695,11 @@ struct clk_hw *imx_clk_scu_alloc_dev(const char *name,
                pr_warn("%s: failed to attached the power domain %d\n",
                        name, ret);
 
-       platform_device_add(pdev);
+       ret = platform_device_add(pdev);
+       if (ret) {
+               platform_device_put(pdev);
+               return ERR_PTR(ret);
+       }
 
        /* For API backwards compatiblilty, simply return NULL for success */
        return NULL;