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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240816-cleanup-h-of-node-put-var-v1-11-1d0292802470@linaro.org> References: <20240816-cleanup-h-of-node-put-var-v1-0-1d0292802470@linaro.org> In-Reply-To: <20240816-cleanup-h-of-node-put-var-v1-0-1d0292802470@linaro.org> To: Pavel Machek , Lee Jones , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , Riku Voipio , Orson Zhai , Baolin Wang , Chunyan Zhang , =?utf-8?q?Marek_Beh=C3=BAn?= Cc: linux-leds@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Krzysztof Kozlowski X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=2357; i=krzysztof.kozlowski@linaro.org; h=from:subject:message-id; bh=lKaguPS9XCpAsm5c5uDkmtZO7d+eB+Wkab1pNRXTP9U=; b=owEBbQKS/ZANAwAKAcE3ZuaGi4PXAcsmYgBmv3Di/6NaLLFot+D5dfegT8i/v6A5joRiEW89N jDAhq5CjM2JAjMEAAEKAB0WIQTd0mIoPREbIztuuKjBN2bmhouD1wUCZr9w4gAKCRDBN2bmhouD 1+8tEACVczd8uQcgqQnn1chR1D9ZHwx5vpecvoE+zaIxLcF5I+90rwhxxDn8jJIGBDIEB4D9lEY 8VArDs5hWgYidus4DO8QPVMc724Na7iEO7XzHXA0vlYqglosEqKSCnk4YhLj9qeh3+5O3s9AvHO R33hSdaUSKRYUo3TbrUsZEGXIeFOzwtCuHLsZ7q5n1zPLKNnM3zoWIwsYsAhBbyKKJG2C0DiGSQ 2C2cIy6FWj+wnvnOugue2gimQjVJfyuQN9DzLZ8XGwrti2/8VvZRNUjkfCI2rAJxr9kwhYzVzr/ MpKyOM/P4/YzNG8obVj+CwBkV+W8vCB0nXinpOgz7ZP9U7h5exRrnzfkT8OYQkEMN2K1KF5XpST DCGPitYNCxFLKDO3lSHmtS/5Uinxi5W9s9bcES7OcytdUjcqNr4rFP8F6AXsJZZEnBu9LTX2vnJ CyxeqAjuuhSzLaQqA75FgTeeQ1Q7SpHfyvewqraZVxTQRKdeuJJvXZo/aKCdvfZtzuo5bYGaBeC OiRKTvWBCZtlOIob7/WKFTNmtZyltasnmpOPnHBdyojcJynwE1/+XZ/AzSPpVBnvmulZACpMAT0 3YFovAp4Rms2RRR8qDQXBvLFJMeuUkgoSK2KBHBiUy0eo/yRQDOxKD6WC52EALjbTb/BLwiLhox wdc6cj6rorb2j6Q== X-Developer-Key: i=krzysztof.kozlowski@linaro.org; a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B Obtain the device node reference with scoped/cleanup.h to reduce error handling and make the code a bit simpler. Signed-off-by: Krzysztof Kozlowski --- drivers/leds/leds-mc13783.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) diff --git a/drivers/leds/leds-mc13783.c b/drivers/leds/leds-mc13783.c index bbd1d359bba4..da99d114bfb2 100644 --- a/drivers/leds/leds-mc13783.c +++ b/drivers/leds/leds-mc13783.c @@ -12,6 +12,7 @@ * Eric Miao */ =20 +#include #include #include #include @@ -113,7 +114,7 @@ static struct mc13xxx_leds_platform_data __init *mc13xx= x_led_probe_dt( { struct mc13xxx_leds *leds =3D platform_get_drvdata(pdev); struct mc13xxx_leds_platform_data *pdata; - struct device_node *parent, *child; + struct device_node *child; struct device *dev =3D &pdev->dev; int i =3D 0, ret =3D -ENODATA; =20 @@ -121,24 +122,23 @@ static struct mc13xxx_leds_platform_data __init *mc13= xxx_led_probe_dt( if (!pdata) return ERR_PTR(-ENOMEM); =20 - parent =3D of_get_child_by_name(dev_of_node(dev->parent), "leds"); + struct device_node *parent __free(device_node) =3D + of_get_child_by_name(dev_of_node(dev->parent), "leds"); if (!parent) - goto out_node_put; + return ERR_PTR(-ENODATA); =20 ret =3D of_property_read_u32_array(parent, "led-control", pdata->led_control, leds->devtype->num_regs); if (ret) - goto out_node_put; + return ERR_PTR(ret); =20 pdata->num_leds =3D of_get_available_child_count(parent); =20 pdata->led =3D devm_kcalloc(dev, pdata->num_leds, sizeof(*pdata->led), GFP_KERNEL); - if (!pdata->led) { - ret =3D -ENOMEM; - goto out_node_put; - } + if (!pdata->led) + return ERR_PTR(-ENOMEM); =20 for_each_available_child_of_node(parent, child) { const char *str; @@ -158,12 +158,10 @@ static struct mc13xxx_leds_platform_data __init *mc13= xxx_led_probe_dt( } =20 pdata->num_leds =3D i; - ret =3D i > 0 ? 0 : -ENODATA; + if (i <=3D 0) + return ERR_PTR(-ENODATA); =20 -out_node_put: - of_node_put(parent); - - return ret ? ERR_PTR(ret) : pdata; + return pdata; } #else static inline struct mc13xxx_leds_platform_data __init *mc13xxx_led_probe_= dt( --=20 2.43.0