From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 40149261B9E; Sat, 30 May 2026 17:56:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780163769; cv=none; b=Tz7D4If4It3FaN6MmXh3oN0Y0sCMYCdkFt5SYkpcL9aS79p3l95giy49n3ySMNJVP5ME8fffzpM2dJdzkxgudSShizi6YR0CWNxKEHmgid75Vf1IK/aIc71/lUd3PRg4fg6XZryeCG8utyDE/JgEBCCPYuQEgTfG/6tCKYTgnDk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780163769; c=relaxed/simple; bh=uoPiInXtbThgoxNqZZ7WAb8SDLWKj6Eof3UlRtGUhMg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=D6JkAdchLlPunl4y6Qol4+e5VbJnvbRhSKRtWd9/O3NQXshQ+CEH5q+N3IRkVB2xJqOcq5N5iqOV3xYU/lxjl77qaRseWEN4AzLbzC4XJGlazqPOprLDTMFVpdphvpUj1RhJKzwB0vg2X5UW1rYaIhfNKLwOOiwqdlCYOXyLbAg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=aPlSMIa5; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="aPlSMIa5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 85FD01F00893; Sat, 30 May 2026 17:56:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1780163768; bh=QEjtSPiaYMLNJvO9h2gBSDhqXrpts/rcmRb94/W3Q6A=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=aPlSMIa5cqtlWkMvdRO6vojPCuJBGCtLJCSsnYsNhFk8U1zJpZQTpTbWW7KmBtFYw LtKcAfkla15k6KcgnZTFImaTSj/h4FpuMxLqbqZudalzNaWXpilZ8EIkgeWA2BQBt4 coAXcfDUaPZqG6Z8WC58sXjeiocNxxlBr70ZKPrI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Oliver Neukum , Sean Young , Hans Verkuil Subject: [PATCH 5.15 355/776] media: rc: xbox_remote: heed DMA restrictions Date: Sat, 30 May 2026 18:01:09 +0200 Message-ID: <20260530160249.758191560@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260530160240.228940103@linuxfoundation.org> References: <20260530160240.228940103@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Oliver Neukum commit e280d1e5e3f2595bbb43fe6e1bce00c59a43c0ff upstream. The buffer for IO must not be part of the device structure because that violates the DMA coherency rules. Fixes: 02d32bdad3123 ("media: rc: add driver for Xbox DVD Movie Playback Kit") Cc: stable@vger.kernel.org Signed-off-by: Oliver Neukum Signed-off-by: Sean Young Signed-off-by: Hans Verkuil Signed-off-by: Greg Kroah-Hartman --- drivers/media/rc/xbox_remote.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) --- a/drivers/media/rc/xbox_remote.c +++ b/drivers/media/rc/xbox_remote.c @@ -55,7 +55,7 @@ struct xbox_remote { struct usb_interface *interface; struct urb *irq_urb; - unsigned char inbuf[DATA_BUFSIZE] __aligned(sizeof(u16)); + u8 *inbuf; char rc_name[NAME_BUFSIZE]; char rc_phys[NAME_BUFSIZE]; @@ -220,6 +220,10 @@ static int xbox_remote_probe(struct usb_ if (!xbox_remote || !rc_dev) goto exit_free_dev_rdev; + xbox_remote->inbuf = kzalloc(DATA_BUFSIZE, GFP_KERNEL); + if (!xbox_remote->inbuf) + goto exit_free_inbuf; + /* Allocate URB buffer */ xbox_remote->irq_urb = usb_alloc_urb(0, GFP_KERNEL); if (!xbox_remote->irq_urb) @@ -266,6 +270,8 @@ exit_kill_urbs: usb_kill_urb(xbox_remote->irq_urb); exit_free_buffers: usb_free_urb(xbox_remote->irq_urb); +exit_free_inbuf: + kfree(xbox_remote->inbuf); exit_free_dev_rdev: rc_free_device(rc_dev); kfree(xbox_remote); @@ -290,6 +296,7 @@ static void xbox_remote_disconnect(struc usb_kill_urb(xbox_remote->irq_urb); rc_unregister_device(xbox_remote->rdev); usb_free_urb(xbox_remote->irq_urb); + kfree(xbox_remote->inbuf); kfree(xbox_remote); }