[PATCH 10/27] pxa27x_udc: Remove use of seq_printf return value

Joe Perches [off-list ref] writes:

The seq_printf return value, because it's frequently misused,
will eventually be converted to void.

See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to
     seq_has_overflowed() and make public")

While there, simplify the error handler logic by returning
immediately and remove the unnecessary labels.

Signed-off-by: Joe Perches <joe@perches.com>

Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>

Cheers.

--
Robert