kernel: fix crashes on MIPS when loading kernel modules under memory pressure

[openwrt/staging/yousong.git] / target / linux / generic / patches-4.4 / 305-mips_module_reloc.patch

diff --git a/target/linux/generic/patches-4.4/305-mips_module_reloc.patch b/target/linux/generic/patches-4.4/305-mips_module_reloc.patch
index 8b3975fe09516dcb32734bf041815c04324b11d9..944921fff7a0d0d33515cb84a2cb81e9cca42d0e 100644 (file)
--- a/target/linux/generic/patches-4.4/305-mips_module_reloc.patch
+++ b/target/linux/generic/patches-4.4/305-mips_module_reloc.patch
@@ -316,7 +316,7 @@
  
        return 0;
  }
-@@ -287,9 +528,33 @@ int module_finalize(const Elf_Ehdr *hdr,
+@@ -287,9 +528,36 @@ int module_finalize(const Elf_Ehdr *hdr,
                list_add(&me->arch.dbe_list, &dbe_list);
                spin_unlock_irq(&dbe_lock);
        }
@@ -337,6 +337,9 @@
  
 +void module_arch_freeing_init(struct module *mod)
 +{
++      if (mod->state == MODULE_STATE_LIVE)
++              return;
++
 +      if (mod->arch.phys_plt_tbl) {
 +              __module_free(mod->arch.phys_plt_tbl);
 +              mod->arch.phys_plt_tbl = NULL;