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ramoops: Only unregister when registered 

While none of the "fragile" pstore backends unregister yet, if they
ever did, the unregistering code for the non-dump targets might get
confused. This adds a check for fragile backends on unregister.

Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Kees Cook 2016-05-19 10:59:03 -04:00
parent 1a695a905c
commit a1db8060f5
1 changed files with 5 additions and 3 deletions
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2
fs/pstore/platform.c
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@ -497,9 +497,11 @@ EXPORT_SYMBOL_GPL(pstore_register);
void pstore_unregister(struct pstore_info *psi)
{
if ((psi->flags & PSTORE_FLAGS_FRAGILE) == 0) {
pstore_unregister_pmsg();
pstore_unregister_ftrace();
pstore_unregister_console();
}
pstore_unregister_kmsg();
free_buf_for_compression();