| Message ID | 20240814-b4-cleanup-h-of-node-put-usb-v1-7-95481b9682bc@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | usb: dwc3: various cleanups | expand |
On Wed, Aug 14, 2024, Krzysztof Kozlowski wrote: > 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 <krzysztof.kozlowski@linaro.org> > --- > drivers/usb/dwc3/dwc3-qcom.c | 11 +++++------ > 1 file changed, 5 insertions(+), 6 deletions(-) > > diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c > index 88fb6706a18d..03a8f080078e 100644 > --- a/drivers/usb/dwc3/dwc3-qcom.c > +++ b/drivers/usb/dwc3/dwc3-qcom.c > @@ -4,6 +4,7 @@ > * Inspired by dwc3-of-simple.c > */ > > +#include <linux/cleanup.h> > #include <linux/io.h> > #include <linux/of.h> > #include <linux/clk.h> > @@ -702,11 +703,12 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) > static int dwc3_qcom_of_register_core(struct platform_device *pdev) > { > struct dwc3_qcom *qcom = platform_get_drvdata(pdev); > - struct device_node *np = pdev->dev.of_node, *dwc3_np; > + struct device_node *np = pdev->dev.of_node; > struct device *dev = &pdev->dev; > int ret; > > - dwc3_np = of_get_compatible_child(np, "snps,dwc3"); > + struct device_node *dwc3_np __free(device_node) = of_get_compatible_child(np, > + "snps,dwc3"); > if (!dwc3_np) { > dev_err(dev, "failed to find dwc3 core child\n"); > return -ENODEV; > @@ -715,7 +717,7 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) > ret = of_platform_populate(np, NULL, NULL, dev); > if (ret) { > dev_err(dev, "failed to register dwc3 core - %d\n", ret); > - goto node_put; > + return ret; > } > > qcom->dwc3 = of_find_device_by_node(dwc3_np); > @@ -725,9 +727,6 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) > of_platform_depopulate(dev); > } > > -node_put: > - of_node_put(dwc3_np); > - > return ret; > } > > > -- > 2.43.0 > Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Thanks, Thinh
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 88fb6706a18d..03a8f080078e 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -4,6 +4,7 @@ * Inspired by dwc3-of-simple.c */ +#include <linux/cleanup.h> #include <linux/io.h> #include <linux/of.h> #include <linux/clk.h> @@ -702,11 +703,12 @@ static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count) static int dwc3_qcom_of_register_core(struct platform_device *pdev) { struct dwc3_qcom *qcom = platform_get_drvdata(pdev); - struct device_node *np = pdev->dev.of_node, *dwc3_np; + struct device_node *np = pdev->dev.of_node; struct device *dev = &pdev->dev; int ret; - dwc3_np = of_get_compatible_child(np, "snps,dwc3"); + struct device_node *dwc3_np __free(device_node) = of_get_compatible_child(np, + "snps,dwc3"); if (!dwc3_np) { dev_err(dev, "failed to find dwc3 core child\n"); return -ENODEV; @@ -715,7 +717,7 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) ret = of_platform_populate(np, NULL, NULL, dev); if (ret) { dev_err(dev, "failed to register dwc3 core - %d\n", ret); - goto node_put; + return ret; } qcom->dwc3 = of_find_device_by_node(dwc3_np); @@ -725,9 +727,6 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) of_platform_depopulate(dev); } -node_put: - of_node_put(dwc3_np); - return ret; }
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 <krzysztof.kozlowski@linaro.org> --- drivers/usb/dwc3/dwc3-qcom.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-)