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authorGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>2009-05-27 15:05:02 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2009-06-02 14:04:56 +1000
commit3ce858cb04de8bc83449eac707c8012a1944daca (patch)
tree0bdf275d63a6f53f01703255d52a6129df9fd3dc /crypto/zlib.c
parente9736c16da9077728802f42393d18258e6685428 (diff)
downloadlinux-sh-3ce858cb04de8bc83449eac707c8012a1944daca.tar.gz
crypto: compress - Return produced bytes in crypto_{,de}compress_{update,final}
If crypto_{,de}compress_{update,final}() succeed, return the actual number of bytes produced instead of zero, so their users don't have to calculate that theirselves. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/zlib.c')
-rw-r--r--crypto/zlib.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/crypto/zlib.c b/crypto/zlib.c
index 33609bab614e..c3015733c990 100644
--- a/crypto/zlib.c
+++ b/crypto/zlib.c
@@ -165,15 +165,15 @@ static int zlib_compress_update(struct crypto_pcomp *tfm,
return -EINVAL;
}
+ ret = req->avail_out - stream->avail_out;
pr_debug("avail_in %u, avail_out %u (consumed %u, produced %u)\n",
stream->avail_in, stream->avail_out,
- req->avail_in - stream->avail_in,
- req->avail_out - stream->avail_out);
+ req->avail_in - stream->avail_in, ret);
req->next_in = stream->next_in;
req->avail_in = stream->avail_in;
req->next_out = stream->next_out;
req->avail_out = stream->avail_out;
- return 0;
+ return ret;
}
static int zlib_compress_final(struct crypto_pcomp *tfm,
@@ -195,15 +195,15 @@ static int zlib_compress_final(struct crypto_pcomp *tfm,
return -EINVAL;
}
+ ret = req->avail_out - stream->avail_out;
pr_debug("avail_in %u, avail_out %u (consumed %u, produced %u)\n",
stream->avail_in, stream->avail_out,
- req->avail_in - stream->avail_in,
- req->avail_out - stream->avail_out);
+ req->avail_in - stream->avail_in, ret);
req->next_in = stream->next_in;
req->avail_in = stream->avail_in;
req->next_out = stream->next_out;
req->avail_out = stream->avail_out;
- return 0;
+ return ret;
}
@@ -280,15 +280,15 @@ static int zlib_decompress_update(struct crypto_pcomp *tfm,
return -EINVAL;
}
+ ret = req->avail_out - stream->avail_out;
pr_debug("avail_in %u, avail_out %u (consumed %u, produced %u)\n",
stream->avail_in, stream->avail_out,
- req->avail_in - stream->avail_in,
- req->avail_out - stream->avail_out);
+ req->avail_in - stream->avail_in, ret);
req->next_in = stream->next_in;
req->avail_in = stream->avail_in;
req->next_out = stream->next_out;
req->avail_out = stream->avail_out;
- return 0;
+ return ret;
}
static int zlib_decompress_final(struct crypto_pcomp *tfm,
@@ -328,15 +328,15 @@ static int zlib_decompress_final(struct crypto_pcomp *tfm,
return -EINVAL;
}
+ ret = req->avail_out - stream->avail_out;
pr_debug("avail_in %u, avail_out %u (consumed %u, produced %u)\n",
stream->avail_in, stream->avail_out,
- req->avail_in - stream->avail_in,
- req->avail_out - stream->avail_out);
+ req->avail_in - stream->avail_in, ret);
req->next_in = stream->next_in;
req->avail_in = stream->avail_in;
req->next_out = stream->next_out;
req->avail_out = stream->avail_out;
- return 0;
+ return ret;
}