diff options
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/configfs.c | 9 | ||||
| -rw-r--r-- | drivers/usb/gadget/function/f_mtp.c | 14 |
2 files changed, 14 insertions, 9 deletions
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 5db4fe9e3cdf..be29dc4bef89 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -1528,7 +1528,14 @@ static int android_setup(struct usb_gadget *gadget, static void android_disconnect(struct usb_gadget *gadget) { struct usb_composite_dev *cdev = get_gadget_data(gadget); - struct gadget_info *gi = container_of(cdev, struct gadget_info, cdev); + struct gadget_info *gi; + + if (!cdev) { + pr_err("%s: gadget is not connected\n", __func__); + return; + } + + gi = container_of(cdev, struct gadget_info, cdev); /* accessory HID support can be active while the accessory function is not actually enabled, diff --git a/drivers/usb/gadget/function/f_mtp.c b/drivers/usb/gadget/function/f_mtp.c index 5e50fe245a59..33f7304eac84 100644 --- a/drivers/usb/gadget/function/f_mtp.c +++ b/drivers/usb/gadget/function/f_mtp.c @@ -43,6 +43,7 @@ #include "configfs.h" #define MTP_RX_BUFFER_INIT_SIZE 1048576 +#define MTP_TX_BUFFER_INIT_SIZE 1048576 #define MTP_BULK_BUFFER_SIZE 16384 #define INTR_BUFFER_SIZE 28 #define MAX_INST_NAME_LEN 40 @@ -81,7 +82,7 @@ unsigned int mtp_rx_req_len = MTP_RX_BUFFER_INIT_SIZE; module_param(mtp_rx_req_len, uint, S_IRUGO | S_IWUSR); -unsigned int mtp_tx_req_len = MTP_BULK_BUFFER_SIZE; +unsigned int mtp_tx_req_len = MTP_TX_BUFFER_INIT_SIZE; module_param(mtp_tx_req_len, uint, S_IRUGO | S_IWUSR); unsigned int mtp_tx_reqs = MTP_TX_REQ_MAX; @@ -551,9 +552,6 @@ static int mtp_create_bulk_endpoints(struct mtp_dev *dev, dev->ep_intr = ep; retry_tx_alloc: - if (mtp_tx_req_len > MTP_BULK_BUFFER_SIZE) - mtp_tx_reqs = 4; - /* now allocate requests for our endpoints */ for (i = 0; i < mtp_tx_reqs; i++) { req = mtp_request_new(dev->ep_in, mtp_tx_req_len); @@ -753,8 +751,8 @@ static ssize_t mtp_write(struct file *fp, const char __user *buf, break; } - if (count > MTP_BULK_BUFFER_SIZE) - xfer = MTP_BULK_BUFFER_SIZE; + if (count > mtp_tx_req_len) + xfer = mtp_tx_req_len; else xfer = count; if (xfer && copy_from_user(req->buf, buf, xfer)) { @@ -850,8 +848,8 @@ static void send_file_work(struct work_struct *data) break; } - if (count > MTP_BULK_BUFFER_SIZE) - xfer = MTP_BULK_BUFFER_SIZE; + if (count > mtp_tx_req_len) + xfer = mtp_tx_req_len; else xfer = count; |