misc/50643: src/sys/arch/hpc/stand/hpcboot/arm/arm_console.cpp:80: sanity check after use

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>Number:         50643
>Category:       misc
>Synopsis:       src/sys/arch/hpc/stand/hpcboot/arm/arm_console.cpp:80: sanity check after use
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    misc-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jan 10 21:00:00 +0000 2016
>Originator:     David Binderman
>Release:        cvs dated 20160110
>Organization:
>Environment:
>Description:
[src/sys/arch/hpc/stand/hpcboot/arm/arm_console.cpp:80]: (style) Array index 'i' is used before limits check.

Source code is

    for (int i = 0; _bufm[i] != '\0' && i < CONSOLE_BUFSIZE; i++) {

Suggest sanity check array index before use.
>How-To-Repeat:

>Fix: