Fix warnings reported by smatch by initializing local 'ret' variable
to 0.
drivers/base/regmap/regcache-maple.c:186 regcache_maple_drop()
error: uninitialized symbol 'ret'.
drivers/base/regmap/regcache-maple.c:290 regcache_maple_sync()
error: uninitialized symbol 'ret'.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: f033c26de5a5 ("regmap: Add maple tree based register cache")
Link: https://lore.kernel.org/r/20240329144630.1965159-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
        unsigned long *entry, *lower, *upper;
        unsigned long lower_index, lower_last;
        unsigned long upper_index, upper_last;
-       int ret;
+       int ret = 0;
 
        lower = NULL;
        upper = NULL;
        unsigned long lmin = min;
        unsigned long lmax = max;
        unsigned int r, v, sync_start;
-       int ret;
+       int ret = 0;
        bool sync_needed = false;
 
        map->cache_bypass = true;