Commit 0d7cd09a authored by Kees Cook's avatar Kees Cook
Browse files

pstore: Improve register_pstore() error reporting 



Uncommon errors are better to get reported to dmesg so developers can
more easily figure out why pstore is unhappy with a backend attempting
to register.

Signed-off-by: default avatarKees Cook <keescook@chromium.org>
parent 1344dd86

fs/pstore/platform.c

+5 −1
Original line number Diff line number Diff line
@@ -673,11 +673,15 @@ int pstore_register(struct pstore_info *psi) 
{

	struct module *owner = psi->owner;



	if (backend && strcmp(backend, psi->name))

	if (backend && strcmp(backend, psi->name)) {

		pr_warn("ignoring unexpected backend '%s'\n", psi->name);

		return -EPERM;

	}



	spin_lock(&pstore_lock);

	if (psinfo) {

		pr_warn("backend '%s' already loaded: ignoring '%s'\n",

			psinfo->name, psi->name);

		spin_unlock(&pstore_lock);

		return -EBUSY;

	}