cmd_nand: fix crashing bug in nand read/write
authorSteve Sakoman <steve@sakoman.com>
Thu, 7 Jun 2012 17:19:18 +0000 (10:19 -0700)
committerScott Wood <scott@tyr.buserror.net>
Fri, 8 Jun 2012 19:57:24 +0000 (14:57 -0500)
commit8d75c8964baa76d097edb4aa4b0474600f2998ba
tree056e850371fcdb988da4d3e33e362c3bfc37de6b
parentfedab338f3459315cb69627fcf46032ec8df1753
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>
common/cmd_nand.c