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CBFS: Change the signature of cbfs_decompress.

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Instead of returning 0 on success and -1 on error, return the decompressed
size of the data on success and 0 on error. The decompressed size is useful
information to have that was being thrown away in that function.

Change-Id: If787201aa61456b1e47feaf3a0071c753fa299a3
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3578
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
This commit is contained in:
Gabe Black
2013-07-01 04:57:37 -07:00
committed by Patrick Georgi
parent f31eacca62
commit 0c605a5a6c
7 changed files with 24 additions and 28 deletions
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18
src/lib/cbfs.c
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@ -112,7 +112,7 @@ void *cbfs_load_optionrom(struct cbfs_media *media, uint16_t vendor,
if (! dest)
return src;
if (cbfs_decompress(ntohl(orom->compression),
if (!cbfs_decompress(ntohl(orom->compression),
src,
dest,
ntohl(orom->len)))
@ -204,8 +204,8 @@ static void *load_stage_from_cbfs(struct cbfs_media *media, const char *name,
LOG("Decompressing stage %s @ 0x%p (%d bytes)\n",
name, &ramstage_region[rmodule_offset], stage->memlen);
if (cbfs_decompress(stage->compression, &stage[1],
&ramstage_region[rmodule_offset], stage->len))
if (!cbfs_decompress(stage->compression, &stage[1],
&ramstage_region[rmodule_offset], stage->len))
return (void *) -1;
if (rmodule_parse(&ramstage_region[rmodule_offset], &ramstage))
@ -259,6 +259,7 @@ void * cbfs_load_stage(struct cbfs_media *media, const char *name)
/* this is a mess. There is no ntohll. */
/* for now, assume compatible byte order until we solve this. */
uint32_t entry;
uint32_t final_size;
if (stage == NULL)
return (void *) -1;
@ -270,11 +271,12 @@ void * cbfs_load_stage(struct cbfs_media *media, const char *name)
/* Stages rely the below clearing so that the bss is initialized. */
memset((void *) (uint32_t) stage->load, 0, stage->memlen);
if (cbfs_decompress(stage->compression,
((unsigned char *) stage) +
sizeof(struct cbfs_stage),
(void *) (uint32_t) stage->load,
stage->len))
final_size = cbfs_decompress(stage->compression,
((unsigned char *) stage) +
sizeof(struct cbfs_stage),
(void *) (uint32_t) stage->load,
stage->len);
if (!final_size)
return (void *) -1;
DEBUG("stage loaded.\n");