forked from luck/tmp_suning_uos_patched
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>
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@ -497,9 +497,11 @@ EXPORT_SYMBOL_GPL(pstore_register);
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void pstore_unregister(struct pstore_info *psi)
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{
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pstore_unregister_pmsg();
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pstore_unregister_ftrace();
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pstore_unregister_console();
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if ((psi->flags & PSTORE_FLAGS_FRAGILE) == 0) {
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pstore_unregister_pmsg();
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pstore_unregister_ftrace();
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pstore_unregister_console();
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}
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pstore_unregister_kmsg();
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free_buf_for_compression();
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