linux-kernel - [tip:core/iommu] irq_remap: Fix the 'sub

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Message-ID: <tip-c558df4a01a9ec7b02303aba808d1e5044822add@git.kernel.org>
Date:	Tue, 8 May 2012 03:03:22 -0700
From:	tip-bot for Suresh Siddha <suresh.b.siddha@...el.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	joerg.roedel@....com, suresh.b.siddha@...el.com, tglx@...utronix.de
Subject: [tip:core/iommu] irq_remap: Fix the 'sub_handle'
  uninitialized warning

Commit-ID:  c558df4a01a9ec7b02303aba808d1e5044822add
Gitweb:     http://git.kernel.org/tip/c558df4a01a9ec7b02303aba808d1e5044822add
Author:     Suresh Siddha <suresh.b.siddha@...el.com>
AuthorDate: Tue, 8 May 2012 00:08:54 -0700
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Tue, 8 May 2012 11:17:30 +0200

irq_remap: Fix the 'sub_handle' uninitialized warning

Fix this uninitialized variable warning:

  drivers/iommu/intel_irq_remapping.c:986:12: warning: ‘sub_handle’ may be used uninitialized in this function [-Wuninitialized]

GCC is wrong, help it out.

Signed-off-by: Suresh Siddha <suresh.b.siddha@...el.com>
Cc: joro@...tes.org
Cc: iommu@...ts.linux-foundation.org
Cc: Joerg Roedel <joerg.roedel@....com>
Link: http://lkml.kernel.org/r/1336460934-23592-3-git-send-email-suresh.b.siddha@intel.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 drivers/iommu/intel_irq_remapping.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index 1c0255e..6d34706 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -964,7 +964,7 @@ static void intel_compose_msi_msg(struct pci_dev *pdev,
 {
 	struct irq_cfg *cfg;
 	struct irte irte;
-	u16 sub_handle;
+	u16 sub_handle = 0;
 	int ir_index;
 
 	cfg = irq_get_chip_data(irq);
--
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