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module: zero mod->init_ro_size after init is freed. 

Reset mod->init_ro_size to zero after the init part of a module is unloaded.
Otherwise we need to check if module->init is NULL in the unprotect functions
in the next patch.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Jan Glauber 2011-05-19 16:55:25 -06:00 committed by Rusty Russell
parent 5d05c70849
commit 4d10380e72
1 changed files with 1 additions and 0 deletions
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kernel/module.c
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@ -2935,6 +2935,7 @@ SYSCALL_DEFINE3(init_module, void __user *, umod,
module_free(mod, mod->module_init);
mod->module_init = NULL;
mod->init_size = 0;
mod->init_ro_size = 0;
mod->init_text_size = 0;
mutex_unlock(&module_mutex);