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authorRalf Baechle <ralf@linux-mips.org>2001-01-31 22:22:27 +0000
committerRalf Baechle <ralf@linux-mips.org>2001-01-31 22:22:27 +0000
commit825423e4c4f18289df2393951cfd2a7a31fc0464 (patch)
tree4ad80e981c3d9effa910d2247d118d254f9a5d09 /drivers/usb/serial/usbserial.c
parentc4693dc4856ab907a5c02187a8d398861bebfc7e (diff)
Merge with Linux 2.4.1.
Diffstat (limited to 'drivers/usb/serial/usbserial.c')
-rw-r--r--drivers/usb/serial/usbserial.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/usb/serial/usbserial.c b/drivers/usb/serial/usbserial.c
index 1a07a03d5..3a3451e49 100644
--- a/drivers/usb/serial/usbserial.c
+++ b/drivers/usb/serial/usbserial.c
@@ -14,8 +14,14 @@
* based on a driver by Brad Keryan)
*
* See Documentation/usb/usb-serial.txt for more information on using this driver
- *
- * (12/29/2000) gkh
+ *
+ * (12/12/2000) gkh
+ * Removed MOD_INC and MOD_DEC from poll and disconnect functions, and
+ * moved them to the serial_open and serial_close functions.
+ * Also fixed bug with there not being a MOD_DEC for the generic driver
+ * (thanks to Gary Brubaker for finding this.)
+ *
+ * (11/29/2000) gkh
* Small NULL pointer initialization cleanup which saves a bit of disk image
*
* (11/01/2000) Adam J. Richter
@@ -471,6 +477,8 @@ static int serial_open (struct tty_struct *tty, struct file * filp)
return -ENODEV;
}
+ MOD_INC_USE_COUNT;
+
/* set up our port structure making the tty driver remember our port object, and us it */
portNumber = MINOR(tty->device) - serial->minor;
port = &serial->port[portNumber];
@@ -508,6 +516,8 @@ static void serial_close(struct tty_struct *tty, struct file * filp)
} else {
generic_close(port, filp);
}
+
+ MOD_DEC_USE_COUNT;
}
@@ -721,12 +731,13 @@ static int generic_open (struct usb_serial_port *port, struct file *filp)
if (port_paranoia_check (port, __FUNCTION__))
return -ENODEV;
+ MOD_INC_USE_COUNT;
+
dbg(__FUNCTION__ " - port %d", port->number);
spin_lock_irqsave (&port->port_lock, flags);
++port->open_count;
- MOD_INC_USE_COUNT;
if (!port->active) {
port->active = 1;
@@ -776,6 +787,7 @@ static void generic_close (struct usb_serial_port *port, struct file * filp)
}
spin_unlock_irqrestore (&port->port_lock, flags);
+ MOD_DEC_USE_COUNT;
}
@@ -1069,7 +1081,6 @@ static void * usb_serial_probe(struct usb_device *dev, unsigned int ifnum,
}
/* found all that we need */
- MOD_INC_USE_COUNT;
info("%s converter detected", type->name);
#ifdef CONFIG_USB_SERIAL_GENERIC
@@ -1077,7 +1088,6 @@ static void * usb_serial_probe(struct usb_device *dev, unsigned int ifnum,
num_ports = num_bulk_out;
if (num_ports == 0) {
err("Generic device with no bulk out, not allowed.");
- MOD_DEC_USE_COUNT;
return NULL;
}
} else
@@ -1087,7 +1097,6 @@ static void * usb_serial_probe(struct usb_device *dev, unsigned int ifnum,
serial = get_free_serial (num_ports, &minor);
if (serial == NULL) {
err("No more free serial devices");
- MOD_DEC_USE_COUNT;
return NULL;
}
@@ -1233,7 +1242,6 @@ probe_error:
/* free up any memory that we allocated */
kfree (serial);
- MOD_DEC_USE_COUNT;
return NULL;
}
@@ -1300,7 +1308,6 @@ static void usb_serial_disconnect(struct usb_device *dev, void *ptr)
info("device disconnected");
}
- MOD_DEC_USE_COUNT;
}