tree c552144cfd34a05428db130e6ceffe2431ec78a5
parent 8a8ae62f8296760a2a1eee7009a1444c327603e0
author Frans Klaver <frans.klaver@xsens.com> 1415304617 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1415314863 -0800

serial: 8250_core: actually limit char reads to max_count

In serial8250_rx_chars(), max_count is set to 256. Due to the
post-decrement operator used in the while() condition, the maximum
number of iterations actually 257. This is not a problem, but it is
mildly surprising if you're debugging. Use pre-decrement instead.

Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>