From: "Stephen Biggs" <yrgrknmxpzlk@gawab.com>
To: kernel-janitors@vger.kernel.org
Subject: [KJ] [PATCH][RESUBMIT][18/21] kernel/* - compile warning cleanup
Date: Mon, 14 Feb 2005 22:02:54 +0000 [thread overview]
Message-ID: <42113C2E.30170.52C303@localhost> (raw)
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Description: compile warning cleanup - handle copy_to/from_user error
returns
Signed-off-by: Stephen Biggs <yrgrknmxpzlk@gawab.com>
diff -Nurdp -X dontdiff-osdl linux-2.6.11-rc3-mm2-original/kernel/module.c linux-2.6.11-rc3-mm2/kernel/module.c
--- linux-2.6.11-rc3-mm2-original/kernel/module.c 2005-02-12 12:06:40.000000000 +0200
+++ linux-2.6.11-rc3-mm2/kernel/module.c 2005-02-12 13:42:58.000000000 +0200
@@ -1402,7 +1402,10 @@ static void who_is_doing_it(void)
char args[512];
unsigned int i, len = current->mm->arg_end - current->mm->arg_start;
- copy_from_user(args, (void *)current->mm->arg_start, len);
+ if(copy_from_user(args, (void *)current->mm->arg_start, len)) {
+ printk(KERN_ERR "kernel/module.c:%s: copy_from_user failed!\n",__FUNCTION__);
+ return;
+ }
for (i = 0; i < len; i++) {
if (args[i] == '\0')
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