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| author | Mike Rapoport <rppt@linux.ibm.com> | 2019-05-13 17:18:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-14 09:47:47 -0700 |
| commit | f40399992a245c852ad446e265d1567010db5e10 (patch) | |
| tree | 840728fb509eed29dd784e96de1d9e5c2e86ecc1 /init/main.c | |
| parent | 522c99194549e50a9bd76427a06922d7a68237d6 (diff) | |
| download | lwn-f40399992a245c852ad446e265d1567010db5e10.tar.gz lwn-f40399992a245c852ad446e265d1567010db5e10.zip | |
init: free_initmem: poison freed init memory
Various architectures including x86 poison the freed init memory. Do the
same in the generic free_initmem implementation and switch sparc32
architecture that is identical to the generic code over to it now.
Link: http://lkml.kernel.org/r/1550515285-17446-4-git-send-email-rppt@linux.ibm.com
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/init/main.c b/init/main.c index 26234570a324..5a2c69b4d7b3 100644 --- a/init/main.c +++ b/init/main.c @@ -1076,7 +1076,7 @@ static inline void mark_readonly(void) void __weak free_initmem(void) { - free_initmem_default(-1); + free_initmem_default(POISON_FREE_INITMEM); } static int __ref kernel_init(void *unused) |