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path: root/drivers/usb/gadget/rndis.c
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Diffstat (limited to 'drivers/usb/gadget/rndis.c')
-rw-r--r--drivers/usb/gadget/rndis.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c
index 1e4cfb05f70..693f0c24d51 100644
--- a/drivers/usb/gadget/rndis.c
+++ b/drivers/usb/gadget/rndis.c
@@ -1127,11 +1127,15 @@ static struct proc_dir_entry *rndis_connect_state [RNDIS_MAX_CONFIGS];
#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
+static bool rndis_initialized;
int rndis_init(void)
{
u8 i;
+ if (rndis_initialized)
+ return 0;
+
for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
char name [20];
@@ -1158,6 +1162,7 @@ int rndis_init(void)
INIT_LIST_HEAD(&(rndis_per_dev_params[i].resp_queue));
}
+ rndis_initialized = true;
return 0;
}
@@ -1166,7 +1171,13 @@ void rndis_exit(void)
#ifdef CONFIG_USB_GADGET_DEBUG_FILES
u8 i;
char name[20];
+#endif
+ if (!rndis_initialized)
+ return;
+ rndis_initialized = false;
+
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
for (i = 0; i < RNDIS_MAX_CONFIGS; i++) {
sprintf(name, NAME_TEMPLATE, i);
remove_proc_entry(name, NULL);