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pstore/ram: Should zap persistent zone on unlink 

Otherwise, unlinked file will reappear on the next boot.

Reported-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Anton Vorontsov 2012-05-26 06:07:52 -07:00 committed by Greg Kroah-Hartman
parent fce3979304
commit 93cce04968
1 changed files with 1 additions and 0 deletions
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fs/pstore/ram.c
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@ -186,6 +186,7 @@ static int ramoops_pstore_erase(enum pstore_type_id type, u64 id,
return -EINVAL;
persistent_ram_free_old(cxt->przs[id]);
persistent_ram_zap(cxt->przs[id]);
return 0;
}