From: Frans Klaver <frans.klaver@xsens.com>
Date: Thu, 6 Nov 2014 20:10:17 +0000 (+0100)
Subject: serial: 8250_core: actually limit char reads to max_count
X-Git-Tag: omap-for-v3.19/fixes-rc1~86^2~51
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c904375d4b15122c225c1073fd7a56bd541b0ce5;p=pandora-kernel.git

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>
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