soc: ti: pm33xx: Fix refcount leak in am33xx_pm_probe

wkup_m3_ipc_get() takes refcount, which should be freed by
wkup_m3_ipc_put(). Add missing refcount release in the error paths.

Fixes: 5a99ae0092fe ("soc: ti: pm33xx: AM437X: Add rtc_only with ddr in self-refresh support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20230106054022.947529-1-linmq006@gmail.com
Signed-off-by: Nishanth Menon <nm@ti.com>

diff --git a/drivers/soc/ti/pm33xx.c b/drivers/soc/ti/pm33xx.c
index ce09c42eaed259df492ccc51b7d5542531435259..f04c21157904bb4a8b901f1373accb22aa540c9d 100644 (file)
--- a/drivers/soc/ti/pm33xx.c
+++ b/drivers/soc/ti/pm33xx.c
@@ -527,7 +527,7 @@ static int am33xx_pm_probe(struct platform_device *pdev)
 
        ret = am33xx_pm_alloc_sram();
        if (ret)
-               return ret;
+               goto err_wkup_m3_ipc_put;
 
        ret = am33xx_pm_rtc_setup();
        if (ret)
@@ -572,13 +572,14 @@ err_pm_runtime_put:
        pm_runtime_put_sync(dev);
 err_pm_runtime_disable:
        pm_runtime_disable(dev);
-       wkup_m3_ipc_put(m3_ipc);
 err_unsetup_rtc:
        iounmap(rtc_base_virt);
        clk_put(rtc_fck);
 err_free_sram:
        am33xx_pm_free_sram();
        pm33xx_dev = NULL;
+err_wkup_m3_ipc_put:
+       wkup_m3_ipc_put(m3_ipc);
        return ret;
 }