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([2804:14c:485:4b61:e1b3:7a61:eeed:d791]) by smtp.gmail.com with ESMTPSA id ix14-20020a170902f80e00b001e22860c32asm9066544plb.143.2024.04.09.09.29.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Apr 2024 09:29:32 -0700 (PDT) From: Fabio Estevam To: gregkh@linuxfoundation.org Cc: mka@chromium.org, frieder.schrempf@kontron.de, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Fabio Estevam Subject: [PATCH v2] usb: misc: onboard_usb_hub: Disable the USB hub clock on failure Date: Tue, 9 Apr 2024 13:29:10 -0300 Message-Id: <20240409162910.2061640-1-festevam@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Fabio Estevam In case regulator_bulk_enable() fails, the previously enabled USB hub clock should be disabled. Fix it accordingly. Fixes: 65e62b8a955a ("usb: misc: onboard_usb_hub: Add support for clock input") Signed-off-by: Fabio Estevam Reviewed-by: Frieder Schrempf Acked-by: Matthias Kaehlcke --- Changes since v1: - Rebased against 6.9-rc2. - Collected tags. drivers/usb/misc/onboard_usb_hub.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/usb/misc/onboard_usb_hub.c b/drivers/usb/misc/onboard_usb_hub.c index c6101ed2d9d4..d8049275a023 100644 --- a/drivers/usb/misc/onboard_usb_hub.c +++ b/drivers/usb/misc/onboard_usb_hub.c @@ -78,7 +78,7 @@ static int onboard_hub_power_on(struct onboard_hub *hub) err = regulator_bulk_enable(hub->pdata->num_supplies, hub->supplies); if (err) { dev_err(hub->dev, "failed to enable supplies: %pe\n", ERR_PTR(err)); - return err; + goto disable_clk; } fsleep(hub->pdata->reset_us); @@ -87,6 +87,10 @@ static int onboard_hub_power_on(struct onboard_hub *hub) hub->is_powered_on = true; return 0; + +disable_clk: + clk_disable_unprepare(hub->clk); + return err; } static int onboard_hub_power_off(struct onboard_hub *hub)