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module: fix and elaborate comments

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Fix and elaborate comments.

Signed-off-by: Matti Linnanvuori <mattilinnanvuori@yahoo.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Matti Linnanvuori 2007-11-08 08:37:38 -08:00 committed by Rusty Russell
parent 74b2553f1d
commit 9a4b9708f1
1 changed files with 5 additions and 3 deletions
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8
kernel/module.c
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@ -81,7 +81,8 @@ int unregister_module_notifier(struct notifier_block * nb)
}
EXPORT_SYMBOL(unregister_module_notifier);
/* We require a truly strong try_module_get() */
/* We require a truly strong try_module_get(): 0 means failure due to
ongoing or failed initialization etc. */
static inline int strong_try_module_get(struct module *mod)
{
if (mod && mod->state == MODULE_STATE_COMING)
@ -952,7 +953,8 @@ static unsigned long resolve_symbol(Elf_Shdr *sechdrs,
ret = __find_symbol(name, &owner, &crc,
!(mod->taints & TAINT_PROPRIETARY_MODULE));
if (ret) {
/* use_module can fail due to OOM, or module unloading */
/* use_module can fail due to OOM,
or module initialization or unloading */
if (!check_version(sechdrs, versindex, name, mod, crc) ||
!use_module(mod, owner))
ret = 0;
@ -1369,7 +1371,7 @@ dup:
return ret;
}
/* Change all symbols so that sh_value encodes the pointer directly. */
/* Change all symbols so that st_value encodes the pointer directly. */
static int simplify_symbols(Elf_Shdr *sechdrs,
unsigned int symindex,
const char *strtab,