From: Johan Hovold <johan@kernel.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Juergen Stuber <starblue@users.sourceforge.net>,
legousb-devel@lists.sourceforge.net, linux-usb@vger.kernel.org,
Johan Hovold <johan@kernel.org>
Subject: [PATCH 04/14] USB: legousbtower: drop redundant open_count check
Date: Tue, 5 Nov 2019 09:41:42 +0100 [thread overview]
Message-ID: <20191105084152.16322-5-johan@kernel.org> (raw)
In-Reply-To: <20191105084152.16322-1-johan@kernel.org>
Drop redundant open_count check in release; the open count is used as a
flag and is only set to 0 or 1.
Signed-off-by: Johan Hovold <johan@kernel.org>
---
drivers/usb/misc/legousbtower.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index c880d58e8683..1626a0d2b12b 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -421,13 +421,6 @@ static int tower_release (struct inode *inode, struct file *file)
mutex_lock(&dev->lock);
- if (dev->open_count != 1) {
- dev_dbg(&dev->udev->dev, "%s: device not opened exactly once\n",
- __func__);
- retval = -ENODEV;
- goto unlock_exit;
- }
-
if (dev->disconnected) {
/* the device was unplugged before the file was released */
@@ -444,7 +437,6 @@ static int tower_release (struct inode *inode, struct file *file)
tower_abort_transfers (dev);
dev->open_count = 0;
-unlock_exit:
mutex_unlock(&dev->lock);
exit:
return retval;
--
2.23.0
next prev parent reply other threads:[~2019-11-05 8:42 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-05 8:41 [PATCH 00/14] USB: legousbtower: misc cleanups Johan Hovold
2019-11-05 8:41 ` [PATCH 01/14] USB: legousbtower: drop redundant MODULE_LICENSE ifdef Johan Hovold
2019-11-05 8:41 ` [PATCH 02/14] USB: legousbtower: drop redundant NULL check Johan Hovold
2019-11-05 8:41 ` [PATCH 03/14] USB: legousbtower: zero driver data at allocation Johan Hovold
2019-11-05 8:41 ` Johan Hovold [this message]
2019-11-05 8:41 ` [PATCH 05/14] USB: legousbtower: drop noisy disconnect messages Johan Hovold
2019-11-05 8:41 ` [PATCH 06/14] USB: legousbtower: drop redundant interrupt-in running flag Johan Hovold
2019-11-05 8:41 ` [PATCH 07/14] USB: legousbtower: stop interrupt-out URB unconditionally Johan Hovold
2019-11-05 8:41 ` [PATCH 08/14] USB: legousbtower: remove tower_abort_transfers() Johan Hovold
2019-11-05 8:41 ` [PATCH 09/14] USB: legousbtower: clean up pointer declarations in driver data Johan Hovold
2019-11-05 8:41 ` [PATCH 10/14] USB: legousbtower: drop unnecessary packed attributes Johan Hovold
2019-11-05 8:41 ` [PATCH 11/14] USB: legousbtower: drop redundant endianness comments Johan Hovold
2019-11-05 8:41 ` [PATCH 12/14] USB: legousbtower: clean up runaway white space Johan Hovold
2019-11-05 8:41 ` [PATCH 13/14] USB: legousbtower: drop superfluous brackets Johan Hovold
2019-11-05 8:41 ` [PATCH 14/14] USB: legousbtower: drop superfluous newlines Johan Hovold
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