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author | Phillip Lougher <phillip@lougher.demon.co.uk> | 2009-12-14 21:45:19 +0000 |
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committer | H. Peter Anvin <hpa@zytor.com> | 2009-12-15 14:04:12 -0800 |
commit | c1e7c3ae59b065bf7ff24a05cb609b2f9e314db6 (patch) | |
tree | b75700eb5160c026761f20e74010406a7fe58bec /include/linux/decompress | |
parent | 23637568ad0c9b5ab0ad27d2f2f26d1e9282c527 (diff) | |
download | kernel_samsung_smdk4412-c1e7c3ae59b065bf7ff24a05cb609b2f9e314db6.zip kernel_samsung_smdk4412-c1e7c3ae59b065bf7ff24a05cb609b2f9e314db6.tar.gz kernel_samsung_smdk4412-c1e7c3ae59b065bf7ff24a05cb609b2f9e314db6.tar.bz2 |
bzip2/lzma/gzip: pre-boot malloc doesn't return NULL on failure
The trivial malloc implementation used in the pre-boot environment by the
decompressors returns a bad pointer on failure (falling through after
calling error). This is doubly wrong - the callers expect malloc to
return NULL on failure, second the error function is intended to be
used by the decompressors to propagate errors to *their* callers. The
decompressors have no access to any state set by the error function.
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
LKML-Reference: <4b26b1ef.hIInb2AYPMtImAJO%phillip@lougher.demon.co.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'include/linux/decompress')
-rw-r--r-- | include/linux/decompress/mm.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h index 12ff8c3..5032b9a 100644 --- a/include/linux/decompress/mm.h +++ b/include/linux/decompress/mm.h @@ -25,7 +25,7 @@ static void *malloc(int size) void *p; if (size < 0) - error("Malloc error"); + return NULL; if (!malloc_ptr) malloc_ptr = free_mem_ptr; @@ -35,7 +35,7 @@ static void *malloc(int size) malloc_ptr += size; if (free_mem_end_ptr && malloc_ptr >= free_mem_end_ptr) - error("Out of memory"); + return NULL; malloc_count++; return p; |