From: Bin Liu <b-liu@ti.com>
To: Paul Cercueil <paul@crapouillou.net>
Cc: <od@zcrc.me>, <linux-usb@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] usb: musb: jz4740: Prevent lockup when CONFIG_SMP is set
Date: Thu, 21 May 2020 15:34:22 -0500 [thread overview]
Message-ID: <20200521203422.GA25575@iaqt7> (raw)
In-Reply-To: <20200520150111.76658-1-paul@crapouillou.net>
On Wed, May 20, 2020 at 05:01:11PM +0200, Paul Cercueil wrote:
> The function dma_controller_irq() locks up the exact same spinlock we
> locked before calling it, which obviously resulted in a deadlock when
> CONFIG_SMP was enabled. This flew under the radar as none of the boards
> supported by this driver needs SMP.
>
> Fixes: 57aadb46bd63 ("usb: musb: jz4740: Add support for DMA")
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Queued for v5.8. Thanks.
-Bin.
next prev parent reply other threads:[~2020-05-21 20:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-20 15:01 [PATCH] usb: musb: jz4740: Prevent lockup when CONFIG_SMP is set Paul Cercueil
2020-05-21 20:34 ` Bin Liu [this message]
2020-05-21 20:39 ` Paul Cercueil
2020-05-21 21:30 ` Bin Liu
2020-05-21 21:35 ` Bin Liu
2020-05-21 21:28 ` Bin Liu
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