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-rw-r--r--kernel/module.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/kernel/module.c b/kernel/module.c
index 0925c9a..b049939 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1209,10 +1209,11 @@ static inline int check_modstruct_version(Elf_Shdr *sechdrs,
/* Since this should be found in kernel (which can't be removed),
* no locking is necessary. */
- if (!find_symbol(MODULE_SYMBOL_PREFIX "module_layout", NULL,
+ if (!find_symbol(VMLINUX_SYMBOL_STR(module_layout), NULL,
&crc, true, false))
BUG();
- return check_version(sechdrs, versindex, "module_layout", mod, crc,
+ return check_version(sechdrs, versindex,
+ VMLINUX_SYMBOL_STR(module_layout), mod, crc,
NULL);
}
@@ -1861,12 +1862,12 @@ static void free_module(struct module *mod)
{
trace_module_free(mod);
- /* Delete from various lists */
- mutex_lock(&module_mutex);
- stop_machine(__unlink_module, mod, NULL);
- mutex_unlock(&module_mutex);
mod_sysfs_teardown(mod);
+ /* We leave it in list to prevent duplicate loads, but make sure
+ * that noone uses it while it's being deconstructed. */
+ mod->state = MODULE_STATE_UNFORMED;
+
/* Remove dynamic debug info */
ddebug_remove_module(mod->name);
@@ -1879,6 +1880,11 @@ static void free_module(struct module *mod)
/* Free any allocated parameters. */
destroy_params(mod->kp, mod->num_kp);
+ /* Now we can delete it from the lists */
+ mutex_lock(&module_mutex);
+ stop_machine(__unlink_module, mod, NULL);
+ mutex_unlock(&module_mutex);
+
/* This may be NULL, but that's OK */
unset_module_init_ro_nx(mod);
module_free(mod, mod->module_init);
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