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lib: fdt: Allow enabling both LZO and GZIP DT compression

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Allow enabling both LZO and GZIP DT compression in SPL and fix a
bug where if the GZIP decompression failed, the LZO decompression
would not even be attempted.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
This commit is contained in:
Marek Vasut 2019-03-13 21:11:22 +01:00 committed by Marek Vasut
parent 4fa8375ffe
commit 1fd303543a
1 changed files with 13 additions and 6 deletions
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19
lib/fdtdec.c
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@ -1183,16 +1183,21 @@ int fdtdec_setup_memory_banksize(void)
static int uncompress_blob(const void *src, ulong sz_src, void **dstp)
{
size_t sz_out = CONFIG_SPL_MULTI_DTB_FIT_UNCOMPRESS_SZ;
bool gzip = 0, lzo = 0;
ulong sz_in = sz_src;
void *dst;
int rc;
if (CONFIG_IS_ENABLED(GZIP))
if (gzip_parse_header(src, sz_in) < 0)
return -1;
if (gzip_parse_header(src, sz_in) >= 0)
gzip = 1;
if (CONFIG_IS_ENABLED(LZO))
if (!lzop_is_valid_header(src))
return -EBADMSG;
if (!gzip && lzop_is_valid_header(src))
lzo = 1;
if (!gzip && !lzo)
return -EBADMSG;
if (CONFIG_IS_ENABLED(MULTI_DTB_FIT_DYN_ALLOC)) {
dst = malloc(sz_out);
@ -1208,10 +1213,12 @@ static int uncompress_blob(const void *src, ulong sz_src, void **dstp)
# endif
}
if (CONFIG_IS_ENABLED(GZIP))
if (CONFIG_IS_ENABLED(GZIP) && gzip)
rc = gunzip(dst, sz_out, (u8 *)src, &sz_in);
else if (CONFIG_IS_ENABLED(LZO))
else if (CONFIG_IS_ENABLED(LZO) && lzo)
rc = lzop_decompress(src, sz_in, dst, &sz_out);
else
hang();
if (rc < 0) {
/* not a valid compressed blob */