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Message-ID: <20231114101645.20065-1-stanley_chang@realtek.com>
Date: Tue, 14 Nov 2023 18:16:45 +0800
From: Stanley Chang <stanley_chang@...ltek.com>
To: Thinh Nguyen <Thinh.Nguyen@...opsys.com>
CC: Stanley Chang <stanley_chang@...ltek.com>,
Christophe JAILLET <christophe.jaillet@...adoo.fr>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v2] usb: dwc3: add missing of_node_put and platform_device_put
of_get_compatible_child performs an of_node_get, so an of_node_get is
required. Add platform_device_put to match with of_find_device_by_node.
Fixes: 34c200483569 ("usb: dwc3: add Realtek DHC RTD SoC dwc3 glue layer driver")
Signed-off-by: Stanley Chang <stanley_chang@...ltek.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@...opsys.com>
---
v1 to v2 change:
1. Modify the commit message.
2. Add of_node_get in the of_property_read_string() error path.
---
drivers/usb/dwc3/dwc3-rtk.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/dwc3-rtk.c b/drivers/usb/dwc3/dwc3-rtk.c
index 590028e8fdcb..3cd6b184551c 100644
--- a/drivers/usb/dwc3/dwc3-rtk.c
+++ b/drivers/usb/dwc3/dwc3-rtk.c
@@ -183,10 +183,13 @@ static enum usb_device_speed __get_dwc3_maximum_speed(struct device_node *np)
ret = of_property_read_string(dwc3_np, "maximum-speed", &maximum_speed);
if (ret < 0)
- return USB_SPEED_UNKNOWN;
+ goto out;
ret = match_string(speed_names, ARRAY_SIZE(speed_names), maximum_speed);
+out:
+ of_node_put(dwc3_np);
+
return (ret < 0) ? USB_SPEED_UNKNOWN : ret;
}
@@ -339,6 +342,9 @@ static int dwc3_rtk_probe_dwc3_core(struct dwc3_rtk *rtk)
switch_usb2_role(rtk, rtk->cur_role);
+ platform_device_put(dwc3_pdev);
+ of_node_put(dwc3_node);
+
return 0;
err_pdev_put:
--
2.34.1
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