tree 916595beae9ff3063e15b7be9ac5dec13651558f
parent 4cb078c092682e2259031d388ffb43bf771b326e
author Wolfgang Denk <wd@denx.de> 1272444827 +0200
committer Wolfgang Denk <wd@denx.de> 1272444827 +0200

mtdparts: fix write through NULL pointer

The "mtdparts add" command wrote through a NULL pointer - on many
systems this went unnoticed (PowerPC has writable RAM there, some ARM
systems have ROM where a write has no effect), but on arm1136
(i.MX31) it crashed the system.

Add appropriate checks.

Signed-off-by: Wolfgang Denk <wd@denx.de>