From: Manivannan Sadhasivam <mani@kernel.org>
To: Wentao Liang <vulab@iscas.ac.cn>
Cc: alcooperx@gmail.com, bcm-kernel-feedback-list@broadcom.com,
justin.chen@broadcom.com, kishon@kernel.org,
linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org,
neil.armstrong@linaro.org, vkoul@kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH] phy: usb: Fix USB 3.0 clock reference leak in brcm_usb_phy_dvr_init()
Date: Mon, 12 Oct 2026 21:34:52 +0530 [thread overview]
Message-ID: <as0FEDefpSlqtipP@debian> (raw)
In-Reply-To: <20260917133651.2153617-1-vulab@iscas.ac.cn>
On Thu, Sep 17, 2026 at 01:36:51PM +0000, Wentao Liang wrote:
> brcm_usb_phy_dvr_init() obtains usb_30_clk with of_clk_get_by_name(),
> which takes a reference on the clock, but returns without calling
> clk_put() when clk_prepare_enable() fails, when the suspend clock
> request is deferred, or when devm_request_irq() fails. The clock is
> only handed to the driver on the success path, so nothing releases the
> reference on these paths.
>
> Drop it from the err_put_clks label, and clear usb_30_clk on the
> -EPROBE_DEFER path where it holds an error pointer rather than a
> reference.
>
> Fixes: 49859e55e364 ("phy: usb: phy-brcm-usb: Add Broadcom STB USB phy driver")
> Cc: stable@vger.kernel.org
> Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Same comment as previous patch. Handle all leaks in one patch.
- Mani
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prev parent reply other threads:[~2026-10-12 16:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 13:36 [PATCH] phy: usb: Fix USB 3.0 clock reference leak in brcm_usb_phy_dvr_init() Wentao Liang
2026-10-12 16:04 ` Manivannan Sadhasivam [this message]
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