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Single overzealous locking assertion fix. 

Cheers,
 Rusty.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull module fix from Rusty Russell:
 "Single overzealous locking assertion fix"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  module: weaken locking assertion for oops path.
This commit is contained in:
Linus Torvalds 2015-08-03 10:25:32 -07:00
parent 74d33293e4 fe0d34d242
commit 5b2a0eeea7
1 changed files with 6 additions and 2 deletions
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8
kernel/module.c
View File

@ -602,13 +602,16 @@ const struct kernel_symbol *find_symbol(const char *name,
}
EXPORT_SYMBOL_GPL(find_symbol);
/* Search for module by name: must hold module_mutex. */
/*
* Search for module by name: must hold module_mutex (or preempt disabled
* for read-only access).
*/
static struct module *find_module_all(const char *name, size_t len,
bool even_unformed)
{
struct module *mod;
module_assert_mutex();
module_assert_mutex_or_preempt();
list_for_each_entry(mod, &modules, list) {
if (!even_unformed && mod->state == MODULE_STATE_UNFORMED)
@ -621,6 +624,7 @@ static struct module *find_module_all(const char *name, size_t len,
struct module *find_module(const char *name)
{
module_assert_mutex();
return find_module_all(name, strlen(name), false);
}
EXPORT_SYMBOL_GPL(find_module);