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| author | H. Peter Anvin <hpa@linux.intel.com> | 2009-01-12 23:24:04 +0100 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2009-01-12 23:34:31 +0100 |
| commit | 23a22d57a8962479ca630c9542e62d6f86fdf927 (patch) | |
| tree | 5839f8f3125a7ddf90eb6c679908206ba464b7af /lib/decompress.c | |
| parent | bzip2/lzma: make flush_buffer() unconditional (diff) | |
| download | linux-23a22d57a8962479ca630c9542e62d6f86fdf927.tar.xz linux-23a22d57a8962479ca630c9542e62d6f86fdf927.zip | |
bzip2/lzma: comprehensible error messages for missing decompressor
Instead of failing to identify a compressed image with a decompressor
that we don't have compiled in, identify it and fail with a
comprehensible panic message.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'lib/decompress.c')
| -rw-r--r-- | lib/decompress.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/lib/decompress.c b/lib/decompress.c index edac55cc7823..961f367320fc 100644 --- a/lib/decompress.c +++ b/lib/decompress.c @@ -13,21 +13,25 @@ #include <linux/types.h> #include <linux/string.h> +#ifndef CONFIG_DECOMPRESS_GZIP +# define gunzip NULL +#endif +#ifndef CONFIG_DECOMPRESS_BZIP2 +# define bunzip2 NULL +#endif +#ifndef CONFIG_DECOMPRESS_LZMA +# define unlzma NULL +#endif + static const struct compress_format { unsigned char magic[2]; const char *name; decompress_fn decompressor; } compressed_formats[] = { -#ifdef CONFIG_DECOMPRESS_GZIP { {037, 0213}, "gzip", gunzip }, { {037, 0236}, "gzip", gunzip }, -#endif -#ifdef CONFIG_DECOMPRESS_BZIP2 { {0x42, 0x5a}, "bzip2", bunzip2 }, -#endif -#ifdef CONFIG_DECOMPRESS_LZMA { {0x5d, 0x00}, "lzma", unlzma }, -#endif { {0, 0}, NULL, NULL } }; |