aboutsummaryrefslogtreecommitdiff
path: root/drivers/usb
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/file_storage.c12
-rw-r--r--drivers/usb/misc/iowarrior.c7
-rw-r--r--drivers/usb/misc/usblcd.c22
-rw-r--r--drivers/usb/serial/ftdi_sio.c1
-rw-r--r--drivers/usb/serial/ftdi_sio.h1
-rw-r--r--drivers/usb/serial/io_edgeport.c4
-rw-r--r--drivers/usb/serial/option.c6
-rw-r--r--drivers/usb/serial/ti_usb_3410_5052.c8
8 files changed, 40 insertions, 21 deletions
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index c6b6479fa4d..4639b629e60 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -686,7 +686,6 @@ struct fsg_dev {
int thread_wakeup_needed;
struct completion thread_notifier;
struct task_struct *thread_task;
- sigset_t thread_signal_mask;
int cmnd_size;
u8 cmnd[MAX_COMMAND_SIZE];
@@ -3277,8 +3276,7 @@ static void handle_exception(struct fsg_dev *fsg)
/* Clear the existing signals. Anything but SIGUSR1 is converted
* into a high-priority EXIT exception. */
for (;;) {
- sig = dequeue_signal_lock(current, &fsg->thread_signal_mask,
- &info);
+ sig = dequeue_signal_lock(current, &current->blocked, &info);
if (!sig)
break;
if (sig != SIGUSR1) {
@@ -3431,10 +3429,10 @@ static int fsg_main_thread(void *fsg_)
/* Allow the thread to be killed by a signal, but set the signal mask
* to block everything but INT, TERM, KILL, and USR1. */
- siginitsetinv(&fsg->thread_signal_mask, sigmask(SIGINT) |
- sigmask(SIGTERM) | sigmask(SIGKILL) |
- sigmask(SIGUSR1));
- sigprocmask(SIG_SETMASK, &fsg->thread_signal_mask, NULL);
+ allow_signal(SIGINT);
+ allow_signal(SIGTERM);
+ allow_signal(SIGKILL);
+ allow_signal(SIGUSR1);
/* Arrange for userspace references to be interpreted as kernel
* pointers. That way we can pass a kernel pointer to a routine
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index fc51207b71b..3bb33f7bfa3 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -495,8 +495,8 @@ static int iowarrior_ioctl(struct inode *inode, struct file *file,
/* verify that the device wasn't unplugged */
if (!dev->present) {
- mutex_unlock(&dev->mutex);
- return -ENODEV;
+ retval = -ENODEV;
+ goto error_out;
}
dbg("%s - minor %d, cmd 0x%.4x, arg %ld", __func__, dev->minor, cmd,
@@ -579,9 +579,10 @@ static int iowarrior_ioctl(struct inode *inode, struct file *file,
retval = -ENOTTY;
break;
}
-
+error_out:
/* unlock the device */
mutex_unlock(&dev->mutex);
+ kfree(buffer);
return retval;
}
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c
index 887ef953f3d..12bad8a205a 100644
--- a/drivers/usb/misc/usblcd.c
+++ b/drivers/usb/misc/usblcd.c
@@ -42,10 +42,14 @@ struct usb_lcd {
size_t bulk_in_size; /* the size of the receive buffer */
__u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */
__u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */
- struct kref kref;
+ struct kref kref;
+ struct semaphore limit_sem; /* to stop writes at full throttle from
+ * using up all RAM */
};
#define to_lcd_dev(d) container_of(d, struct usb_lcd, kref)
+#define USB_LCD_CONCURRENT_WRITES 5
+
static struct usb_driver lcd_driver;
static DEFINE_MUTEX(usb_lcd_open_mutex);
@@ -186,12 +190,13 @@ static void lcd_write_bulk_callback(struct urb *urb)
/* free up our allocated buffer */
usb_buffer_free(urb->dev, urb->transfer_buffer_length,
urb->transfer_buffer, urb->transfer_dma);
+ up(&dev->limit_sem);
}
static ssize_t lcd_write(struct file *file, const char __user * user_buffer, size_t count, loff_t *ppos)
{
struct usb_lcd *dev;
- int retval = 0;
+ int retval = 0, r;
struct urb *urb = NULL;
char *buf = NULL;
@@ -201,10 +206,16 @@ static ssize_t lcd_write(struct file *file, const char __user * user_buffer, siz
if (count == 0)
goto exit;
+ r = down_interruptible(&dev->limit_sem);
+ if (r < 0)
+ return -EINTR;
+
/* create a urb, and a buffer for it, and copy the data to the urb */
urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!urb)
- return -ENOMEM;
+ if (!urb) {
+ retval = -ENOMEM;
+ goto err_no_buf;
+ }
buf = usb_buffer_alloc(dev->udev, count, GFP_KERNEL, &urb->transfer_dma);
if (!buf) {
@@ -239,6 +250,8 @@ exit:
error:
usb_buffer_free(dev->udev, count, buf, urb->transfer_dma);
usb_free_urb(urb);
+err_no_buf:
+ up(&dev->limit_sem);
return retval;
}
@@ -277,6 +290,7 @@ static int lcd_probe(struct usb_interface *interface, const struct usb_device_id
goto error;
}
kref_init(&dev->kref);
+ sema_init(&dev->limit_sem, USB_LCD_CONCURRENT_WRITES);
dev->udev = usb_get_dev(interface_to_usbdev(interface));
dev->interface = interface;
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 2353679f601..da1c6f7f82b 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -317,6 +317,7 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_ACTZWAVE_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_IRTRANS_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_IPLUS_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_IPLUS2_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_DMX4ALL) },
{ USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index 33aee904724..d9e49716db1 100644
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -56,6 +56,7 @@
/* iPlus device */
#define FTDI_IPLUS_PID 0xD070 /* Product Id */
+#define FTDI_IPLUS2_PID 0xD071 /* Product Id */
/* DMX4ALL DMX Interfaces */
#define FTDI_DMX4ALL 0xC850
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 4807f960150..056e1923c4d 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -3046,11 +3046,11 @@ static void edge_shutdown (struct usb_serial *serial)
}
/* free up our endpoint stuff */
if (edge_serial->is_epic) {
- usb_unlink_urb(edge_serial->interrupt_read_urb);
+ usb_kill_urb(edge_serial->interrupt_read_urb);
usb_free_urb(edge_serial->interrupt_read_urb);
kfree(edge_serial->interrupt_in_buffer);
- usb_unlink_urb(edge_serial->read_urb);
+ usb_kill_urb(edge_serial->read_urb);
usb_free_urb(edge_serial->read_urb);
kfree(edge_serial->bulk_in_buffer);
}
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 89f067d9507..5d3999e3ff6 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -111,7 +111,8 @@ static int option_send_setup(struct usb_serial_port *port);
#define NOVATELWIRELESS_VENDOR_ID 0x1410
#define ANYDATA_VENDOR_ID 0x16d5
-#define ANYDATA_PRODUCT_ID 0x6501
+#define ANYDATA_PRODUCT_ADU_E100A 0x6501
+#define ANYDATA_PRODUCT_ADU_500A 0x6502
#define BANDRICH_VENDOR_ID 0x1A8D
#define BANDRICH_PRODUCT_C100_1 0x1002
@@ -169,7 +170,8 @@ static struct usb_device_id option_ids[] = {
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2110) }, /* Novatel Merlin ES620 / Merlin ES720 / Ovation U720 */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2130) }, /* Novatel Merlin ES620 SM Bus */
{ USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, 0x2410) }, /* Novatel EU740 */
- { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ID) },
+ { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },
+ { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_1) },
{ USB_DEVICE(BANDRICH_VENDOR_ID, BANDRICH_PRODUCT_C100_2) },
{ USB_DEVICE(DELL_VENDOR_ID, 0x8118) }, /* Dell Wireless 5510 Mobile Broadband HSDPA ExpressCard */
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 4203e2b1a76..3d505fd0645 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -1555,15 +1555,17 @@ static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty)
spin_lock_irqsave(&tport->tp_lock, flags);
if (tport->tp_read_urb_state == TI_READ_URB_STOPPED) {
+ tport->tp_read_urb_state = TI_READ_URB_RUNNING;
urb = tport->tp_port->read_urb;
+ spin_unlock_irqrestore(&tport->tp_lock, flags);
urb->complete = ti_bulk_in_callback;
urb->context = tport;
urb->dev = tport->tp_port->serial->dev;
status = usb_submit_urb(urb, GFP_KERNEL);
+ } else {
+ tport->tp_read_urb_state = TI_READ_URB_RUNNING;
+ spin_unlock_irqrestore(&tport->tp_lock, flags);
}
- tport->tp_read_urb_state = TI_READ_URB_RUNNING;
-
- spin_unlock_irqrestore(&tport->tp_lock, flags);
return status;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 03:45:46 +0000