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pstore: Avoid race in module unloading

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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>
This commit is contained in:
Kees Cook
2017-03-03 17:45:38 -08:00
parent 6330d55347
commit 1344dd86f3
1 changed files with 2 additions and 2 deletions
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4
fs/pstore/platform.c
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@@ -722,10 +722,10 @@ int pstore_register(struct pstore_info *psi)
*/ */
backend = psi->name; backend = psi->name;
module_put(owner);
pr_info("Registered %s as persistent store backend\n", psi->name); pr_info("Registered %s as persistent store backend\n", psi->name);
module_put(owner);
return 0; return 0;
} }
EXPORT_SYMBOL_GPL(pstore_register); EXPORT_SYMBOL_GPL(pstore_register);