staging: pi433: pi433_write fixed the return value

The pi433_write function should return the number of processed bytes

Reported-by: Marcin Ciupak <marcin.s.ciupak@gmail.com>
Signed-off-by: Oliver Graute <oliver.graute@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index 89c03601ec1f291e24666a0676528d7da6cbc20c..1d7c50c1ac23b2fcaaea9a4a8e1e6ee3c646a639 100644 (file)
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -837,7 +837,7 @@ pi433_write(struct file *filp, const char __user *buf,
        wake_up_interruptible(&device->tx_wait_queue);
        dev_dbg(device->dev, "write: generated new msg with %d bytes.", copied);
 
-       return 0;
+       return copied;
 
 abort:
        dev_dbg(device->dev, "write to fifo failed: 0x%x", retval);