string: factorize skip_spaces and export it to be generally available

[safe/jmp/linux-2.6] / kernel / kmod.c

diff --git a/kernel/kmod.c b/kernel/kmod.c
index 385c31a..25b1031 100644 (file)
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -37,6 +37,8 @@
 #include <linux/suspend.h>
 #include <asm/uaccess.h>
 
+#include <trace/events/module.h>
+
 extern int max_threads;
 
 static struct workqueue_struct *khelper_wq;
@@ -84,6 +86,10 @@ int __request_module(bool wait, const char *fmt, ...)
        if (ret >= MODULE_NAME_LEN)
                return -ENAMETOOLONG;
 
+       ret = security_kernel_module_request(module_name);
+       if (ret)
+               return ret;
+
        /* If modprobe needs a service that is in a module, we get a recursive
         * loop.  Limit the number of running kmod threads to max_threads/2 or
         * MAX_KMOD_CONCURRENT, whichever is the smaller.  A cleaner method
@@ -108,6 +114,8 @@ int __request_module(bool wait, const char *fmt, ...)
                return -ENOMEM;
        }
 
+       trace_module_request(module_name, wait, _RET_IP_);
+
        ret = call_usermodehelper(modprobe_path, argv, envp,
                        wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
        atomic_dec(&kmod_concurrent);
@@ -462,6 +470,7 @@ int call_usermodehelper_exec(struct subprocess_info *sub_info,
        int retval = 0;
 
        BUG_ON(atomic_read(&sub_info->cred->usage) != 1);
+       validate_creds(sub_info->cred);
 
        helper_lock();
        if (sub_info->path[0] == '\0')