From: Rupesh Gujare <rupesh.gujare@atmel.com>
To: <devel@linuxdriverproject.org>
Cc: <linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<gregkh@linuxfoundation.org>
Subject: [PATCH 4/4] staging: ozwpan: Return error, if PD is not connected.
Date: Tue, 27 Aug 2013 16:53:43 +0100 [thread overview]
Message-ID: <1377618823-12246-4-git-send-email-rupesh.gujare@atmel.com> (raw)
In-Reply-To: <1377618823-12246-1-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 03b41ee..22cb2ae 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 -1;
+ if (!(pd->state & OZ_PD_S_CONNECTED))
+ return -ENXIO;
eb = &pd->elt_buff;
ei = oz_elt_info_alloc(eb);
if (ei == NULL) {
--
1.7.9.5
next prev parent reply other threads:[~2013-08-27 15:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-27 15:53 [PATCH 1/4] staging: ozwpan: Increase ISOC IN buffer depth Rupesh Gujare
2013-08-27 15:53 ` [PATCH 2/4] staging: ozwpan: Reset PORT_ENABLE bit Rupesh Gujare
2013-08-27 15:53 ` [PATCH 3/4] staging: ozwpan: Add debounce time before unregistering Rupesh Gujare
2013-08-27 15:53 ` Rupesh Gujare [this message]
2013-08-27 17:27 ` [PATCH 4/4] staging: ozwpan: Return error, if PD is not connected Sergei Shtylyov
2013-08-27 18:57 ` [PATCH 1/4] staging: ozwpan: Increase ISOC IN buffer depth Dan Carpenter
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