[PATCH 3.19.y-ckt 149/164] of/fdt: fix error checking for earlycon address

3.19.8-ckt11 -stable review patch. If anyone has any objections, please let me know. -- From: Masahiro Yamada commit 3f5ceec96470050d20d7281d49985e3b1cfc3995 upstream. fdt_translate_address() returns OF_BAD_ADDR on error. It is defined as a u64 value, so the variable "addr"

[PATCH 3.19.y-ckt 149/164] of/fdt: fix error checking for earlycon address

3.19.8-ckt11 -stable review patch. If anyone has any objections, please let me know. -- From: Masahiro Yamada commit 3f5ceec96470050d20d7281d49985e3b1cfc3995 upstream. fdt_translate_address() returns OF_BAD_ADDR on error. It is defined as a