env: suppress a spurious warning with GCC 7.1
authorPhilipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tue, 21 Nov 2017 22:29:40 +0000 (23:29 +0100)
committerTom Rini <trini@konsulko.com>
Thu, 30 Nov 2017 03:36:58 +0000 (22:36 -0500)
commitfd374665c9b724bb3eb0da32db0bb7ecc5cf1337
treebf80b3bb1154cd9f6194cc383f9f8b86fdf4e9b7
parent9bd76b807636599712b4f932da9b57d5d3e8fad4
env: suppress a spurious warning with GCC 7.1

GCC 7.1 seems to be smart enough to track val through the various
static inline functions, but not smart enough to see that val will
always be initialised when no error is returned.  This triggers
the following warning:
  env/mmc.c: In function 'mmc_get_env_addr':
  env/mmc.c:121:12: warning: 'val' may be used uninitialized in this function [-Wmaybe-uninitialized]

To make it easier for compiler to understand what is going on, let's
initialise val.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
env/mmc.c