From: Alexey Khoroshilov <khoroshilov@ispras.ru>
To: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Alexey Khoroshilov <khoroshilov@ispras.ru>,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
ldv-project@linuxtesting.org
Subject: [PATCH] [media] bt8xx: remove needless module refcounting
Date: Sat, 9 Apr 2016 02:09:49 +0300 [thread overview]
Message-ID: <1460156989-14404-1-git-send-email-khoroshilov@ispras.ru> (raw)
It is responsibility of a caller of fops->open(),
to make sure an owner of the fops is available until file is closed.
So, there is no need to lock THIS_MODULE explicitly.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
---
drivers/media/pci/bt8xx/dst_ca.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/media/pci/bt8xx/dst_ca.c b/drivers/media/pci/bt8xx/dst_ca.c
index da8b414fd824..8681b9143a35 100644
--- a/drivers/media/pci/bt8xx/dst_ca.c
+++ b/drivers/media/pci/bt8xx/dst_ca.c
@@ -655,7 +655,6 @@ static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioct
static int dst_ca_open(struct inode *inode, struct file *file)
{
dprintk(verbose, DST_CA_DEBUG, 1, " Device opened [%p] ", file);
- try_module_get(THIS_MODULE);
return 0;
}
@@ -663,7 +662,6 @@ static int dst_ca_open(struct inode *inode, struct file *file)
static int dst_ca_release(struct inode *inode, struct file *file)
{
dprintk(verbose, DST_CA_DEBUG, 1, " Device closed.");
- module_put(THIS_MODULE);
return 0;
}
--
1.9.1
reply other threads:[~2016-04-08 23:10 UTC|newest]
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