Patch from Yann Morin so modprobe won't return failure if the module gets

loaded while it's running (ala multi-device hotplug).


git-svn-id: svn://busybox.net/trunk/busybox@15906 69ca8d6d-28ef-0310-b511-8ec308f3f277

1 files changed, 11 insertions, 2 deletions

diff --git a/modutils/modprobe.c b/modutils/modprobe.c
index efb119e3e..f51de56be 100644
--- a/modutils/modprobe.c
+++ b/modutils/modprobe.c
@@ -679,7 +679,7 @@ static int mod_process ( struct mod_list_t *list, int do_insert )
                         }
                         if (!show_only) {
                                 int rc2 = wait4pid(spawn(argv));
-                                
+
                                 if (do_insert) {
                                         rc = rc2; /* only last module matters */
                                 }
@@ -859,7 +859,16 @@ static int mod_insert ( char *mod, int argc, char **argv )
                 }
 
                 // process tail ---> head
-                rc = mod_process ( tail, 1 );
+                if ((rc = mod_process ( tail, 1 )) != 0) {
+                        /*
+                         * In case of using udev, multiple instances of modprobe can be
+                         * spawned to load the same module (think of two same usb devices,
+                         * for example; or cold-plugging at boot time). Thus we shouldn't
+                         * fail if the module was loaded, and not by us.
+                         */
+                        if (already_loaded (mod) )
+                                rc = 0;
+                }
         }
         else
                 rc = 1;