diff mbox series

[08/11] USB: dwc3: clean up core init error handling

Message ID	20230404072524.19014-9-johan+linaro@kernel.org
State	New
Headers	Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; From: Johan Hovold <johan+linaro@kernel.org> To: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Johan Hovold <johan+linaro@kernel.org> Subject: [PATCH 08/11] USB: dwc3: clean up core init error handling Date: Tue, 4 Apr 2023 09:25:21 +0200 Message-Id: <20230404072524.19014-9-johan+linaro@kernel.org> In-Reply-To: <20230404072524.19014-1-johan+linaro@kernel.org> References: <20230404072524.19014-1-johan+linaro@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	USB: dwc3: error handling fixes and cleanups \| [00/11] USB: dwc3: error handling fixes and cleanups [01/11] USB: dwc3: fix runtime pm imbalance on probe errors [02/11] USB: dwc3: fix runtime pm imbalance on unbind [03/11] USB: dwc3: disable autosuspend on unbind [04/11] USB: dwc3: gadget: drop dead hibernation code [05/11] USB: dwc3: drop dead hibernation code [06/11] USB: dwc3: clean up probe error labels [07/11] USB: dwc3: clean up phy init error handling [08/11] USB: dwc3: clean up core init error handling [09/11] USB: dwc3: refactor phy handling [10/11] USB: dwc3: refactor clock lookups [11/11] USB: dwc3: clean up probe declarations

Commit Message

Johan Hovold April 4, 2023, 7:25 a.m. UTC

  Clean up the core init error handling by using descriptive names for the
error labels and releasing resourcing in reverse order consistently.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 drivers/usb/dwc3/core.c | 30 +++++++++++++-----------------
 1 file changed, 13 insertions(+), 17 deletions(-)

Comments

Thinh Nguyen April 7, 2023, 12:56 a.m. UTC | #1

On Tue, Apr 04, 2023, Johan Hovold wrote:
> Clean up the core init error handling by using descriptive names for the
> error labels and releasing resourcing in reverse order consistently.
> 
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
> ---
>  drivers/usb/dwc3/core.c | 30 +++++++++++++-----------------
>  1 file changed, 13 insertions(+), 17 deletions(-)
> 
> diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
> index 15405f1f7aef..c499ef026500 100644
> --- a/drivers/usb/dwc3/core.c
> +++ b/drivers/usb/dwc3/core.c
> @@ -1008,7 +1008,7 @@ static int dwc3_core_init(struct dwc3 *dwc)
>  
>  	ret = dwc3_phy_setup(dwc);
>  	if (ret)
> -		goto err0;
> +		return ret;
>  
>  	if (!dwc->ulpi_ready) {
>  		ret = dwc3_core_ulpi_init(dwc);
> @@ -1017,7 +1017,7 @@ static int dwc3_core_init(struct dwc3 *dwc)
>  				dwc3_core_soft_reset(dwc);
>  				ret = -EPROBE_DEFER;
>  			}
> -			goto err0;
> +			return ret;
>  		}
>  		dwc->ulpi_ready = true;
>  	}
> @@ -1025,7 +1025,7 @@ static int dwc3_core_init(struct dwc3 *dwc)
>  	if (!dwc->phys_ready) {
>  		ret = dwc3_core_get_phy(dwc);
>  		if (ret)
> -			goto err0a;
> +			goto err_exit_ulpi;
>  		dwc->phys_ready = true;
>  	}
>  
> @@ -1042,7 +1042,7 @@ static int dwc3_core_init(struct dwc3 *dwc)
>  
>  	ret = dwc3_core_soft_reset(dwc);
>  	if (ret)
> -		goto err1;
> +		goto err_exit_usb3_phy;
>  
>  	if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD &&
>  	    !DWC3_VER_IS_WITHIN(DWC3, ANY, 194A)) {
> @@ -1077,16 +1077,16 @@ static int dwc3_core_init(struct dwc3 *dwc)
>  	usb_phy_set_suspend(dwc->usb3_phy, 0);
>  	ret = phy_power_on(dwc->usb2_generic_phy);
>  	if (ret < 0)
> -		goto err2;
> +		goto err_suspend_usb3_phy;
>  
>  	ret = phy_power_on(dwc->usb3_generic_phy);
>  	if (ret < 0)
> -		goto err3;
> +		goto err_power_off_usb2_phy;
>  
>  	ret = dwc3_event_buffers_setup(dwc);
>  	if (ret) {
>  		dev_err(dwc->dev, "failed to setup event buffers\n");
> -		goto err4;
> +		goto err_power_off_usb3_phy;
>  	}
>  
>  	/*
> @@ -1203,27 +1203,23 @@ static int dwc3_core_init(struct dwc3 *dwc)
>  
>  	return 0;
>  
> -err4:
> +err_power_off_usb3_phy:
>  	phy_power_off(dwc->usb3_generic_phy);
> -
> -err3:
> +err_power_off_usb2_phy:
>  	phy_power_off(dwc->usb2_generic_phy);
> -
> -err2:
> -	usb_phy_set_suspend(dwc->usb2_phy, 1);
> +err_suspend_usb3_phy:
>  	usb_phy_set_suspend(dwc->usb3_phy, 1);
> -
> -err1:
> +	usb_phy_set_suspend(dwc->usb2_phy, 1);
> +err_exit_usb3_phy:
>  	phy_exit(dwc->usb3_generic_phy);
>  err_exit_usb2_phy:
>  	phy_exit(dwc->usb2_generic_phy);
>  err_shutdown_usb3_phy:
>  	usb_phy_shutdown(dwc->usb3_phy);
>  	usb_phy_shutdown(dwc->usb2_phy);
> -err0a:
> +err_exit_ulpi:
>  	dwc3_ulpi_exit(dwc);
>  
> -err0:
>  	return ret;
>  }
>  
> -- 
> 2.39.2
> 

Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>

Thanks,
Thinh

diff mbox series

Patch

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 15405f1f7aef..c499ef026500 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1008,7 +1008,7 @@  static int dwc3_core_init(struct dwc3 *dwc)
 
 	ret = dwc3_phy_setup(dwc);
 	if (ret)
-		goto err0;
+		return ret;
 
 	if (!dwc->ulpi_ready) {
 		ret = dwc3_core_ulpi_init(dwc);
@@ -1017,7 +1017,7 @@  static int dwc3_core_init(struct dwc3 *dwc)
 				dwc3_core_soft_reset(dwc);
 				ret = -EPROBE_DEFER;
 			}
-			goto err0;
+			return ret;
 		}
 		dwc->ulpi_ready = true;
 	}
@@ -1025,7 +1025,7 @@  static int dwc3_core_init(struct dwc3 *dwc)
 	if (!dwc->phys_ready) {
 		ret = dwc3_core_get_phy(dwc);
 		if (ret)
-			goto err0a;
+			goto err_exit_ulpi;
 		dwc->phys_ready = true;
 	}
 
@@ -1042,7 +1042,7 @@  static int dwc3_core_init(struct dwc3 *dwc)
 
 	ret = dwc3_core_soft_reset(dwc);
 	if (ret)
-		goto err1;
+		goto err_exit_usb3_phy;
 
 	if (hw_mode == DWC3_GHWPARAMS0_MODE_DRD &&
 	    !DWC3_VER_IS_WITHIN(DWC3, ANY, 194A)) {
@@ -1077,16 +1077,16 @@  static int dwc3_core_init(struct dwc3 *dwc)
 	usb_phy_set_suspend(dwc->usb3_phy, 0);
 	ret = phy_power_on(dwc->usb2_generic_phy);
 	if (ret < 0)
-		goto err2;
+		goto err_suspend_usb3_phy;
 
 	ret = phy_power_on(dwc->usb3_generic_phy);
 	if (ret < 0)
-		goto err3;
+		goto err_power_off_usb2_phy;
 
 	ret = dwc3_event_buffers_setup(dwc);
 	if (ret) {
 		dev_err(dwc->dev, "failed to setup event buffers\n");
-		goto err4;
+		goto err_power_off_usb3_phy;
 	}
 
 	/*
@@ -1203,27 +1203,23 @@  static int dwc3_core_init(struct dwc3 *dwc)
 
 	return 0;
 
-err4:
+err_power_off_usb3_phy:
 	phy_power_off(dwc->usb3_generic_phy);
-
-err3:
+err_power_off_usb2_phy:
 	phy_power_off(dwc->usb2_generic_phy);
-
-err2:
-	usb_phy_set_suspend(dwc->usb2_phy, 1);
+err_suspend_usb3_phy:
 	usb_phy_set_suspend(dwc->usb3_phy, 1);
-
-err1:
+	usb_phy_set_suspend(dwc->usb2_phy, 1);
+err_exit_usb3_phy:
 	phy_exit(dwc->usb3_generic_phy);
 err_exit_usb2_phy:
 	phy_exit(dwc->usb2_generic_phy);
 err_shutdown_usb3_phy:
 	usb_phy_shutdown(dwc->usb3_phy);
 	usb_phy_shutdown(dwc->usb2_phy);
-err0a:
+err_exit_ulpi:
 	dwc3_ulpi_exit(dwc);
 
-err0:
 	return ret;
 }