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Commit e976e564 authored by Hiraku Toyooka's avatar Hiraku Toyooka Committed by Kees Cook
Browse files

ramoops: use persistent_ram_free() instead of kfree() for freeing prz 



persistent_ram_zone(=prz) structures are allocated by persistent_ram_new(),
which includes vmap() or ioremap(). But they are currently freed by
kfree(). This uses persistent_ram_free() for correct this asymmetry usage.

Signed-off-by: default avatarHiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
Signed-off-by: default avatarNobuhiro Iwamatsu <nobuhiro.iwamatsu.kw@hitachi.com>
Cc: Mark Salyzyn <salyzyn@android.com>
Cc: Seiji Aguchi <seiji.aguchi.tr@hitachi.com>
Signed-off-by: default avatarKees Cook <keescook@chromium.org>
parent 529182e2

fs/pstore/ram.c

+3 −3
Original line number Diff line number Diff line
@@ -643,11 +643,11 @@ static int ramoops_probe(struct platform_device *pdev) 
	kfree(cxt->pstore.buf);

fail_clear:

	cxt->pstore.bufsize = 0;

	kfree(cxt->mprz);

	persistent_ram_free(cxt->mprz);

fail_init_mprz:

	kfree(cxt->fprz);

	persistent_ram_free(cxt->fprz);

fail_init_fprz:

	kfree(cxt->cprz);

	persistent_ram_free(cxt->cprz);

fail_init_cprz:

	ramoops_free_przs(cxt);

fail_out: