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authorMatti Linnanvuori <mattilinnanvuori@yahoo.com>2007-11-08 08:37:38 -0800
committerRusty Russell <rusty@rustcorp.com.au>2007-11-19 11:20:43 +1100
commit9a4b9708f1f2eaf5edd619df578cf3afec36eb82 (patch)
treeaf45a123f6ac642cc326f16c0c97f2c16a18b662
parent74b2553f1d13e60fb27063204bd5b6908a6f8494 (diff)
module: fix and elaborate comments
Fix and elaborate comments. Signed-off-by: Matti Linnanvuori <mattilinnanvuori@yahoo.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
-rw-r--r--kernel/module.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/module.c b/kernel/module.c
index 3202c995007..91fe6958b6e 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -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,