linux-kernel - [PATCH 3.16 148/245] usb: musb: dma: Correct parameter passed to IRQ handler

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Message-ID: <lsq.1587683028.769902789@decadent.org.uk>
Date:   Fri, 24 Apr 2020 00:06:15 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, Denis Kirjanov <kda@...ux-powerpc.org>,
        "Paul Cercueil" <paul@...pouillou.net>, "Bin Liu" <b-liu@...com>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Artur Rojek" <contact@...ur-rojek.eu>
Subject: [PATCH 3.16 148/245] usb: musb: dma: Correct parameter passed to
 IRQ handler

3.16.83-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Paul Cercueil <paul@...pouillou.net>

commit c80d0f4426c7fdc7efd6ae8d8b021dcfc89b4254 upstream.

The IRQ handler was passed a pointer to a struct dma_controller, but the
argument was then casted to a pointer to a struct musb_dma_controller.

Fixes: 427c4f333474 ("usb: struct device - replace bus_id with dev_name(), dev_set_name()")
Signed-off-by: Paul Cercueil <paul@...pouillou.net>
Tested-by: Artur Rojek <contact@...ur-rojek.eu>
Signed-off-by: Bin Liu <b-liu@...com>
Link: https://lore.kernel.org/r/20191216161844.772-2-b-liu@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/usb/musb/musbhsdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -396,7 +396,7 @@ struct dma_controller *dma_controller_cr
 	controller->controller.channel_abort = dma_channel_abort;
 
 	if (request_irq(irq, dma_controller_irq, 0,
-			dev_name(musb->controller), &controller->controller)) {
+			dev_name(musb->controller), controller)) {
 		dev_err(dev, "request_irq %d failed!\n", irq);
 		dma_controller_destroy(&controller->controller);