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Date: Wed, 14 Oct 2026 13:17:22 +0200
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Prashanth K <prashanth.k@oss.qualcomm.com>
Cc: Thinh Nguyen <Thinh.Nguyen@synopsys.com>, linux-usb@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] usb: dwc3: host: Mark dwc->xhci as null if xhci probe
 fails
Message-ID: <2026101452-wow-scarecrow-c7d8@gregkh>
References: <20261014105711.1708244-1-prashanth.k@oss.qualcomm.com>
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In-Reply-To: <20261014105711.1708244-1-prashanth.k@oss.qualcomm.com>

On Wed, Oct 14, 2026 at 04:27:11PM +0530, Prashanth K wrote:
> Currently dwc->xhci is not cleared when xhci_plat_probe fails,
> leading to null pointer dereference in dwc3_qcom_read_usb2_speed.

Why would that happen?  What causes it and requires it?

> Mark the xhci pointer as NULL to prevent this.
> 
> Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com>

What commit id does this fix?
How was it tested?

thanks,

greg k-h