From: Rupesh Gujare <rupesh.gujare@atmel.com>
To: <devel@linuxdriverproject.org>
Cc: <dan.carpenter@oracle.com>, <sergei.shtylyov@cogentembedded.com>,
<linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<gregkh@linuxfoundation.org>
Subject: [v2 PATCH 3/3] staging: ozwpan: Return error, if PD is not connected.
Date: Wed, 28 Aug 2013 12:43:16 +0100 [thread overview]
Message-ID: <1377690196-4516-3-git-send-email-rupesh.gujare@atmel.com> (raw)
In-Reply-To: <1377690196-4516-1-git-send-email-rupesh.gujare@atmel.com>
Return error if we receive write(), while PD is not connected.
Signed-off-by: Rupesh Gujare <rupesh.gujare@atmel.com>
---
drivers/staging/ozwpan/ozcdev.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/staging/ozwpan/ozcdev.c b/drivers/staging/ozwpan/ozcdev.c
index 50722ea..6ccb64f 100644
--- a/drivers/staging/ozwpan/ozcdev.c
+++ b/drivers/staging/ozwpan/ozcdev.c
@@ -162,6 +162,8 @@ static ssize_t oz_cdev_write(struct file *filp, const char __user *buf,
spin_unlock_bh(&g_cdev.lock);
if (pd == NULL)
return -ENXIO;
+ if (!(pd->state & OZ_PD_S_CONNECTED))
+ return -EAGAIN;
eb = &pd->elt_buff;
ei = oz_elt_info_alloc(eb);
if (ei == NULL) {
--
1.7.9.5
prev parent reply other threads:[~2013-08-28 11:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-28 11:43 [v2 PATCH 1/3] staging: ozwpan: Increase ISOC IN buffer depth Rupesh Gujare
2013-08-28 11:43 ` [v2 PATCH 2/3] staging: ozwpan: Change error number Rupesh Gujare
2013-08-28 11:43 ` Rupesh Gujare [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1377690196-4516-3-git-send-email-rupesh.gujare@atmel.com \
--to=rupesh.gujare@atmel.com \
--cc=dan.carpenter@oracle.com \
--cc=devel@linuxdriverproject.org \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=sergei.shtylyov@cogentembedded.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®