linux-kernel - [PATCH] module: fix and elaborate comments

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Date:	Thu, 8 Nov 2007 08:37:38 -0800 (PST)
From:	Matti Linnanvuori <mattilinnanvuori@...oo.com>
To:	rusty@...tcorp.com.au
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] module: fix and elaborate comments

From: Matti Linnanvuori <mattilinnanvuori@...oo.com>

Fix and elaborate comments.

Signed-off-by: Matti Linnanvuori <mattilinnanvuori@...oo.com>
---

--- a/kernel/module.c    2007-11-08 18:21:18.762437500 +0200
+++ b/kernel/module.c    2007-11-08 18:25:57.961364500 +0200
@@ -81,7 +81,8 @@ int unregister_module_notifier(struct no
 }
 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_
     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,





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