tree 836699641350a90c5fadad6df0909b5b0b5e6313
parent 9fef37d7cf170522fb354d6d0ea6de09b9b16678
author Johan Hovold <johan@kernel.org> 1484229370 +0100
committer Johan Hovold <johan@kernel.org> 1484581135 +0100

USB: serial: ark3116: fix open error handling

Fix open error handling which failed to detect errors when reading the
MSR and LSR registers, something which could lead to the shadow
registers being initialised from errnos.

Note that calling the generic close implementation is sufficient in the
error paths as the interrupt urb has not yet been submitted and the
register updates have not been made.

Fixes: f4c1e8d597d1 ("USB: ark3116: Make existing functions 16450-aware
and add close and release functions.")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>