2020-04-21 20:13:52 +00:00
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From 6566c0af08d10f160b57f889133e227a9334f9d4 Mon Sep 17 00:00:00 2001
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2019-08-18 21:33:52 +00:00
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From: kbuild test robot <lkp@intel.com>
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Date: Sat, 13 Apr 2019 11:22:51 +0800
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2020-04-21 20:13:52 +00:00
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Subject: [PATCH 270/325] pci/switchtec: fix stream_open.cocci warnings
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.115-rt48.tar.xz
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2019-08-18 21:33:52 +00:00
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[ Upstream commit 9462c69e29307adc95c289f50839d5d683973891 ]
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drivers/pci/switch/switchtec.c:395:1-17: ERROR: switchtec_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
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Generated by: scripts/coccinelle/api/stream_open.cocci
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Cc: Kirill Smelkov <kirr@nexedi.com>
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Cc: Julia Lawall <julia.lawall@lip6.fr>
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Fixes: 8a29a3bae2a2 ("pci/switchtec: Don't use completion's wait queue")
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Cc: stable-rt@vger.kernel.org # where it applies to
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Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1904131849350.2536@hadrien
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Signed-off-by: kbuild test robot <lkp@intel.com>
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Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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---
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drivers/pci/switch/switchtec.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/drivers/pci/switch/switchtec.c b/drivers/pci/switch/switchtec.c
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2020-03-06 11:44:27 +00:00
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index a8df847bedee..25d1f96cddc1 100644
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2019-08-18 21:33:52 +00:00
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--- a/drivers/pci/switch/switchtec.c
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+++ b/drivers/pci/switch/switchtec.c
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2020-02-21 18:07:43 +00:00
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@@ -356,7 +356,7 @@ static int switchtec_dev_open(struct inode *inode, struct file *filp)
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2019-08-18 21:33:52 +00:00
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return PTR_ERR(stuser);
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filp->private_data = stuser;
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- nonseekable_open(inode, filp);
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+ stream_open(inode, filp);
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dev_dbg(&stdev->dev, "%s: %p\n", __func__, stuser);
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2020-01-03 23:36:11 +00:00
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--
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2020-04-09 19:44:24 +00:00
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2.25.1
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2020-01-03 23:36:11 +00:00
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