sh: Fix access to released memory in dwarf_unwinder_cleanup()
Signed-off-by: Marek Skuczynski <mareksk7@gmail.com>
Acked-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/kernel/dwarf.c b/arch/sh/kernel/dwarf.c
index 3576b70..88d28ec 100644
--- a/arch/sh/kernel/dwarf.c
+++ b/arch/sh/kernel/dwarf.c
@@ -892,18 +892,18 @@
static void dwarf_unwinder_cleanup(void)
{
- struct dwarf_cie *cie;
- struct dwarf_fde *fde;
+ struct dwarf_cie *cie, *cie_tmp;
+ struct dwarf_fde *fde, *fde_tmp;
/*
* Deallocate all the memory allocated for the DWARF unwinder.
* Traverse all the FDE/CIE lists and remove and free all the
* memory associated with those data structures.
*/
- list_for_each_entry(cie, &dwarf_cie_list, link)
+ list_for_each_entry_safe(cie, cie_tmp, &dwarf_cie_list, link)
kfree(cie);
- list_for_each_entry(fde, &dwarf_fde_list, link)
+ list_for_each_entry_safe(fde, fde_tmp, &dwarf_fde_list, link)
kfree(fde);
kmem_cache_destroy(dwarf_reg_cachep);