regmap: A couple of small fixes for 3.4
Two more small fixes: - Now we have users for it that aren't running Android it turns out that regcache_sync_region() is much more useful to drivers if it's exported for use by modules. Who knew? - Make sure we don't divide by zero when doing debugfs dumps of rbtrees, not visible up until now because everything was providing at least some cache on startup. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJPfMvJAAoJEBus8iNuMP3d43YQAI8IJqPoAqK2eKjQlYNRzP3O hWgA6oU56Yqg0PZKKTbWKkul2j9onRV7UrCsXrKo9gCVFNAROkMh9q8uZxzf7yl1 AlOsoKDH/ijYhuAkbLri5tWc8vw5SZS/rSXx6BnVAIPgDjaCEoJcd6swJTfieuyz slN+y3Y3FDk7zIefkcAlMpUR5ks+jAHOHhk/Kwe5+xP3xk/09acuiNogpPYRH4Fp 2tV9Qr9cSrDKIX8eLkR/AkRkmESMIzkpEopQY4vpYO+GiEwyKGdGjMTqkgjQ7PSk jL1lp36CAeVuR7Bp3OFT7bilXZKTrkOiwkC2ctFmyjYK+VO4HWBeOeMmoZvTBRCO +RXAZVN0zFyxPuH6ZJqOuQpCyoY0JBZPZulwRrXGsQpQOoITuEt9yJpLfDSj6hYd Pj8NLHT10n8DBnLk8nXuxT0mNgGDBTNOVCpVblmfm2CLcEGOQsAzWCgCKjkehCUJ O3I/3ZHzs1tvCZNcmt5HH8d8D+iMtkOS8bSHTHvZ2ADjSXWGPgXYlUwObYH6kV9N nMYi8Q6r8skkESL1jaE12XMZxGm07emIyUh+9hfM0lLGEC/cPff2gXwKhtZMDQfE XELx3e/EbyqNsNqFd71v9XpGyJA9si7JvPY/ZSei/CTqToIEAsX/BwGMKGAWnrNy ARlp9oaM6BOOg+i2Ddrg =qm1Q -----END PGP SIGNATURE----- Merge tag 'regmap-3.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull two more small regmap fixes from Mark Brown: - Now we have users for it that aren't running Android it turns out that regcache_sync_region() is much more useful to drivers if it's exported for use by modules. Who knew? - Make sure we don't divide by zero when doing debugfs dumps of rbtrees, not visible up until now because everything was providing at least some cache on startup. * tag 'regmap-3.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: prevent division by zero in rbtree_show regmap: Export regcache_sync_region()
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@ -138,6 +138,7 @@ static int rbtree_show(struct seq_file *s, void *ignored)
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unsigned int base, top;
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int nodes = 0;
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int registers = 0;
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int average;
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mutex_lock(&map->lock);
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@ -152,8 +153,13 @@ static int rbtree_show(struct seq_file *s, void *ignored)
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registers += top - base + 1;
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}
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if (nodes)
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average = registers / nodes;
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else
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average = 0;
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seq_printf(s, "%d nodes, %d registers, average %d registers\n",
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nodes, registers, registers / nodes);
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nodes, registers, average);
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mutex_unlock(&map->lock);
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@ -346,6 +346,7 @@ int regcache_sync_region(struct regmap *map, unsigned int min,
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return ret;
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}
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EXPORT_SYMBOL_GPL(regcache_sync_region);
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/**
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* regcache_cache_only: Put a register map into cache only mode
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