tag rc6

[openwrt/svn-archive/openwrt.git] / target / linux / linux-2.4 / patches / generic / 219-usbserial_buffer.patch

diff --git a/target/linux/linux-2.4/patches/generic/219-usbserial_buffer.patch b/target/linux/linux-2.4/patches/generic/219-usbserial_buffer.patch
new file mode 100644 (file)
index 0000000..f929b50
--- /dev/null
+++ b/target/linux/linux-2.4/patches/generic/219-usbserial_buffer.patch
@@ -0,0 +1,21 @@
+--- linux.old/drivers/usb/serial/usbserial.c   2006-08-19 18:48:07.000000000 +0200
++++ linux.dev/drivers/usb/serial/usbserial.c   2006-08-19 18:46:02.000000000 +0200
+@@ -1359,7 +1359,7 @@
+       wake_up_interruptible(&tty->write_wait);
+ }
+ 
+-
++#define MIN(a, b) (((a) < (b)) ? (a) : (b))
+ static void * usb_serial_probe(struct usb_device *dev, unsigned int ifnum,
+                              const struct usb_device_id *id)
+ {
+@@ -1512,7 +1512,8 @@
+                       err("No free urbs available");
+                       goto probe_error;
+               }
+-              buffer_size = endpoint->wMaxPacketSize;
++              /* Minimum buffer size for EVDO and HSDPA cards */
++              buffer_size = MIN(2048,endpoint->wMaxPacketSize);
+               port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
+               port->bulk_in_buffer = kmalloc (buffer_size, GFP_KERNEL);
+               if (!port->bulk_in_buffer) {