diff options
Diffstat (limited to 'fs/btrfs/hash.c')
| -rw-r--r-- | fs/btrfs/hash.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/btrfs/hash.c b/fs/btrfs/hash.c index aae520b2aee5..6fc94fcba072 100644 --- a/fs/btrfs/hash.c +++ b/fs/btrfs/hash.c @@ -33,6 +33,7 @@ u32 btrfs_crc32c(u32 crc, const void *address, unsigned int length) { SHASH_DESC_ON_STACK(shash, tfm); u32 *ctx = (u32 *)shash_desc_ctx(shash); + u32 retval; int err; shash->tfm = tfm; @@ -42,5 +43,7 @@ u32 btrfs_crc32c(u32 crc, const void *address, unsigned int length) err = crypto_shash_update(shash, address, length); BUG_ON(err); - return *ctx; + retval = *ctx; + barrier_data(ctx); + return retval; } |