Hello. On 08/27/2013 07:53 PM, Rupesh Gujare wrote:
Return error if we receive write(), while PD is not connected.
Signed-off-by: Rupesh Gujare <rupesh.gujare@xxxxxxxxx> --- 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;
Note that returning -EPERM here is hardly correct.
+ if (!(pd->state & OZ_PD_S_CONNECTED)) + return -ENXIO;
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