Messages in this thread Patch in this message | | | From | Rupesh Gujare <> | Subject | [PATCH 4/4] staging: ozwpan: Return error, if PD is not connected. | Date | Tue, 27 Aug 2013 16:53:43 +0100 |
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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
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