tree 056e850371fcdb988da4d3e33e362c3bfc37de6b
parent fedab338f3459315cb69627fcf46032ec8df1753
author Steve Sakoman <steve@sakoman.com> 1339089558 -0700
committer Scott Wood <scott@tyr.buserror.net> 1339185444 -0500

cmd_nand: fix crashing bug in nand read/write

Commit 418396e212b59bf907dbccad997ff50f7eb61b16 introduced a
bug that causes nand read and nand write to crash in strcmp
due to a null pointer.

Root cause is that strchr(cmd, '.') returns a null pointer when
the input string does not contain a '.'

The strcmp function does not check for null pointers, resulting
in a crash.

Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Scott Wood <scott@tyr.buserror.net>