Commit 1344dd86 authored Mar 03, 2017 by Kees Cook

pstore: Avoid race in module unloading



Technically, it might be possible for struct pstore_info to go out of
scope after the module_put(), so report the backend name first.

Signed-off-by: Kees Cook <keescook@chromium.org>

parent 6330d553

fs/pstore/platform.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -722,10 +722,10 @@ int pstore_register(struct pstore_info *psi)
		*/
		backend = psi->name;

		module_put(owner);

		pr_info("Registered %s as persistent store backend\n", psi->name);

		module_put(owner);

		return 0;
		}
		EXPORT_SYMBOL_GPL(pstore_register);