diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 3a80600d6806..4c89f7629d53 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -1062,6 +1062,8 @@ static ssize_t webusb_landingPage_store(struct config_item *item, const char *pa unsigned int bytes_to_strip = 0; int l = len; + if (!len) + return len; if (page[l - 1] == '\n') { --l; ++bytes_to_strip; @@ -1185,6 +1187,8 @@ static ssize_t os_desc_qw_sign_store(struct config_item *item, const char *page, struct gadget_info *gi = os_desc_item_to_gadget_info(item); int res, l; + if (!len) + return len; l = min((int)len, OS_STRING_QW_SIGN_LEN >> 1); if (page[l - 1] == '\n') --l;