diff options
| author | Ingo Molnar <mingo@kernel.org> | 2015-08-18 09:39:47 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-08-18 09:39:47 +0200 |
| commit | a5dd19249607474ed680f16b4f5e8477d2b68689 (patch) | |
| tree | 1aeeef053773c07bc02f3aa637febc80ceb96732 /drivers/base/regmap/regcache-rbtree.c | |
| parent | 6b7e26547fad7ace3dcb27a5babd2317fb9d1e12 (diff) | |
| parent | 512255a2ad2c832ca7d4de9f31245f73781922d0 (diff) | |
Merge branch 'x86/urgent' into x86/asm to fix up conflicts and to pick up fixes
Conflicts:
arch/x86/entry/entry_64_compat.S
arch/x86/math-emu/get_address.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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 */ |