Path: csiph.com!feeder.erje.net!1.us.feeder.erje.net!newsfeed.fsmpi.rwth-aachen.de!newsfeed.straub-nv.de!weretis.net!feeder4.news.weretis.net!storethat.news.telefonica.de!telefonica.de!news.panservice.it!bofh.it!news.nic.it!robomod From: Joerg Roedel Newsgroups: linux.kernel Subject: [PATCH 12/20] iommu/amd: Allow NULL pointer parameter for domain_flush_complete() Date: Fri, 08 Jul 2016 13:50:02 +0200 Message-ID: References: X-Original-To: iommu@lists.linux-foundation.org Dkim-Signature: v=1; a=rsa-sha256; c=simple/simple; d=8bytes.org; s=mail-1; t=1467978325; bh=3aBhk5Kdn9ifTadp/o+5lduxnIOihEdeeubdzL1TJPY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=D3zyCZYZUz094XOuX0DsiJ1DXtQOAaapBPtnFGw4ZvTEo79+TjkGqJxYRrxtIihiA t3gat5HpUxaQM4Zt3nIHROzj2MVTjgU3KdPqPGyCUqdlNwJFmIavGQeaBPBVZZoGCk TYJ8gzFjBIMjH/wtYEmeP3h77jV7y8RABlkKfh5loxt2U5SPE8WVSN1dH85xt9sljZ pQpCHKlsMM+j/27+Ht/oVEAzQasj19/B1dnTN03qkmq4Rzmg/qGDp+cJ/S+JKRJJ9H C8wXt+s1yQgj1AWqfcsw/vBWNq5uM2rQDCAaMUn+YYf2niP5wSI+lMHf8fcnp2VdzI Fc/GlXxa1ygDg== X-Mailer: git-send-email 1.9.1 Sender: robomod@news.nic.it List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Approved: robomod@news.nic.it Lines: 25 Organization: linux.* mail to news gateway X-Original-Cc: linux-kernel@vger.kernel.org, Suravee Suthikulpanit , Vincent.Wan@amd.com, Joerg Roedel X-Original-Date: Fri, 8 Jul 2016 13:45:03 +0200 X-Original-Message-ID: <1467978311-28322-13-git-send-email-joro@8bytes.org> X-Original-References: <1467978311-28322-1-git-send-email-joro@8bytes.org> X-Original-Sender: linux-kernel-owner@vger.kernel.org Xref: csiph.com linux.kernel:1439353 From: Joerg Roedel If domain == NULL is passed to the function, it will queue a completion-wait command on all IOMMUs in the system. Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 4e27c57..7b8e1f8 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -1185,7 +1185,7 @@ static void domain_flush_complete(struct protection_domain *domain) int i; for (i = 0; i < amd_iommus_present; ++i) { - if (!domain->dev_iommu[i]) + if (domain && !domain->dev_iommu[i]) continue; /* -- 1.9.1