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(parent: 8a8ae62) | patch
serial: 8250_core: actually limit char reads to max_count
authorFrans Klaver <frans.klaver@xsens.com>
Thu, 6 Nov 2014 20:10:17 +0000 (21:10 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 6 Nov 2014 23:01:03 +0000 (15:01 -0800)
commitc904375d4b15122c225c1073fd7a56bd541b0ce5
treec552144cfd34a05428db130e6ceffe2431ec78a5tree | snapshot (tar.gz zip)
parent8a8ae62f8296760a2a1eee7009a1444c327603e0commit | diff
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>
drivers/tty/serial/8250/8250_core.c diff | blob | blame | history