diff options
| author | Takashi Iwai <tiwai@suse.de> | 2015-08-31 16:25:22 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-08-31 16:25:22 +0200 |
| commit | 08ceab9d875824f8b389530e830349d5d6c4e582 (patch) | |
| tree | 4ced69544742b87cb369de553df505870be593e1 /drivers/base/regmap/regcache-rbtree.c | |
| parent | ALSA: fireworks/bebob/dice/oxfw: fix substreams counting at vmalloc failure (diff) | |
| parent | Merge remote-tracking branches 'asoc/topic/wm8996', 'asoc/topic/xtensa' and '... (diff) | |
| download | linux-08ceab9d875824f8b389530e830349d5d6c4e582.tar.xz linux-08ceab9d875824f8b389530e830349d5d6c4e582.zip | |
Merge tag 'asoc-v4.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v4.3
Not many updates to the core here, but an awful lot of driver updates
this time round:
- Factoring out of AC'97 reset code into the core
- New drivers for Cirrus CS4349, GTM601, InvenSense ICS43432, Realtek
RT298 and ST STI controllers.
- Machine drivers for Rockchip systems with MAX98090 and RT5645 and
RT5650.
- Initial driver support for Intel Skylake devices.
- A large number of cleanups for Lars-Peter Clausen and Axel Lin.
Diffstat (limited to 'drivers/base/regmap/regcache-rbtree.c')
| -rw-r--r-- | drivers/base/regmap/regcache-rbtree.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index 81751a49d8bf..56486d92c4e7 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -296,11 +296,20 @@ static int regcache_rbtree_insert_to_block(struct regmap *map, if (!blk) return -ENOMEM; - present = krealloc(rbnode->cache_present, - BITS_TO_LONGS(blklen) * sizeof(*present), GFP_KERNEL); - if (!present) { - kfree(blk); - return -ENOMEM; + if (BITS_TO_LONGS(blklen) > BITS_TO_LONGS(rbnode->blklen)) { + present = krealloc(rbnode->cache_present, + BITS_TO_LONGS(blklen) * sizeof(*present), + GFP_KERNEL); + if (!present) { + kfree(blk); + return -ENOMEM; + } + + memset(present + BITS_TO_LONGS(rbnode->blklen), 0, + (BITS_TO_LONGS(blklen) - BITS_TO_LONGS(rbnode->blklen)) + * sizeof(*present)); + } else { + present = rbnode->cache_present; } /* insert the register value in the correct place in the rbnode block */ |