powerpc/powernv: Check image loaded or not before calling flash
authorVasant Hegde <hegdevasant@linux.vnet.ibm.com>
Fri, 13 Feb 2015 09:56:33 +0000 (15:26 +0530)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Wed, 25 Mar 2015 05:17:02 +0000 (16:17 +1100)
commit3f77df7f81526c932ef681eda56eeaa75d0617da
tree32cfad5e4eed46dcc80dec057fd3d3416348baa9
parenta02c0af2f0c4b3c85e828f60ac3459456cfad1e6
powerpc/powernv: Check image loaded or not before calling flash

Present code checks for update_flash_data in opal_flash_term_callback().
update_flash_data has been statically initialized to zero, and that
is the value of FLASH_IMG_READY. Also code update initialization happens
during subsys init.

So if reboot is issued before the subsys init stage then we endup displaying
"Flashing new firmware" message.. which may confuse end user.

This patch fixes above described issue by initializes update_flash status
to invalid state.

Reported-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/platforms/powernv/opal-flash.c