Linux IOMMU Development
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From: Joerg Roedel <joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
To: "zhichang.yuan" <yuanzhichang-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org>
Cc: yankejian-hv44wF8Li93QT0dZR+AlfA@public.gmane.org,
	linuxarm-hv44wF8Li93QT0dZR+AlfA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
	huangdaode-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org,
	zhichang.yuan02-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH] iommu: make iommu_bus_notifier return NOTIFY_DONE rather than  error code
Date: Thu, 20 Apr 2017 16:43:44 +0200	[thread overview]
Message-ID: <20170420144343.GB21305@8bytes.org> (raw)
In-Reply-To: <1492519908-65994-1-git-send-email-yuanzhichang-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org>

On Tue, Apr 18, 2017 at 08:51:48PM +0800, zhichang.yuan wrote:
> In iommu_bus_notifier(), when action is BUS_NOTIFY_ADD_DEVICE, it will return
> 'ops->add_device(dev)' directly. But ops->add_device will return ERR_VAL, such
> as -ENODEV. These value will make notifier_call_chain() not to traverse the
> remain nodes in struct notifier_block list.
> 
> This patch revises iommu_bus_notifier() to return NOTIFY_DONE when some errors
> heppened in ops->add_device().
> 
> Signed-off-by: zhichang.yuan <yuanzhichang-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org>

Applied, thanks.

      parent reply	other threads:[~2017-04-20 14:43 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-18 12:51 [PATCH] iommu: make iommu_bus_notifier return NOTIFY_DONE rather than error code zhichang.yuan
     [not found] ` <1492519908-65994-1-git-send-email-yuanzhichang-C8/M+/jPZTeaMJb+Lgu22Q@public.gmane.org>
2017-04-20 14:43   ` Joerg Roedel [this message]

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