aboutsummaryrefslogtreecommitdiffstats
path: root/init
diff options
context:
space:
mode:
authorMike Rapoport <rppt@linux.ibm.com>2019-05-13 17:18:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-14 09:47:47 -0700
commitf40399992a245c852ad446e265d1567010db5e10 (patch)
tree840728fb509eed29dd784e96de1d9e5c2e86ecc1 /init
parent522c99194549e50a9bd76427a06922d7a68237d6 (diff)
downloadlinus-f40399992a245c852ad446e265d1567010db5e10.tar.gz
linus-f40399992a245c852ad446e265d1567010db5e10.tar.xz
linus-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')
-rw-r--r--init/main.c2
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)