[PATCH] staging: vt6656: Return error code in vnt_rf_write_embedded function

[Greg Kroah-Hartman]

On Mon, Apr 13, 2020 at 12:19:31PM +0200, Oscar Carter wrote:
> Use the error code returned by the vnt_control_out function as the
> returned value of the vnt_rf_write_embedded function instead of a
> boolean value.
> 
> Then, fix all vnt_rf_write_embedded calls removing the "and" operations
> and replace with a direct assignment to the ret variable and add a check
> condition after every call.
> 
> Also replace the boolean values true or false in the vnt_rf_set_txpower
> function to 0 or error code EINVAL to follow the coding style guide.
> 
> The vnt_rf_set_txpower function is called only in the vnt_rf_setpower
> function that already returns error codes. The calls to this function
> (vnt_rf_set_txpower) not use the returned values, so they not need to be
> fixed.
> 
> Signed-off-by: Oscar Carter <oscar.carter at gmx.com>
> ---
>  drivers/staging/vt6656/rf.c | 99 ++++++++++++++++++++++++-------------
>  1 file changed, 64 insertions(+), 35 deletions(-)

This too did not apply :(