[PATCH] mtd:elm: Use correct check on return value of pm_runtime_get_sync

[Brian Norris]

On Mon, Feb 03, 2014 at 03:54:09PM +0100, Stefan Sørensen wrote:
> The ELM driver incorrectly reagard any non-zero return value from
> pm_runtime_get_sync as an error, but it may return 1 if the device
> was already active. Fix to only error when return value is negative.
> 
> Signed-off-by: Stefan Sørensen <stefan.sorensen at spectralink.com>

Pushed to l2-mtd.git. Thanks!

Brian