diff options
author | David S. Miller <davem@davemloft.net> | 2009-03-26 15:23:24 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2009-03-26 15:23:24 -0700 |
commit | 08abe18af1f78ee80c3c3a5ac47c3e0ae0beadf6 (patch) | |
tree | 2be39bf8942edca1bcec735145e144a682ca9cd3 /drivers/usb/core/hcd.c | |
parent | f0de70f8bb56952f6e016a65a8a8d006918f5bf6 (diff) | |
parent | 0384e2959127a56d0640505d004d8dd92f9c29f5 (diff) | |
download | linux-08abe18af1f78ee80c3c3a5ac47c3e0ae0beadf6.tar.gz linux-08abe18af1f78ee80c3c3a5ac47c3e0ae0beadf6.tar.bz2 linux-08abe18af1f78ee80c3c3a5ac47c3e0ae0beadf6.zip |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/net/wimax/i2400m/usb-notif.c
Diffstat (limited to 'drivers/usb/core/hcd.c')
-rw-r--r-- | drivers/usb/core/hcd.c | 33 |
1 files changed, 13 insertions, 20 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 3c711db55d86..81fa8506825d 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -279,9 +279,9 @@ static const u8 hs_rh_config_descriptor [] = { * helper routine for returning string descriptors in UTF-16LE * input can actually be ISO-8859-1; ASCII is its 7-bit subset */ -static int ascii2utf (char *s, u8 *utf, int utfmax) +static unsigned ascii2utf(char *s, u8 *utf, int utfmax) { - int retval; + unsigned retval; for (retval = 0; *s && utfmax > 1; utfmax -= 2, retval += 2) { *utf++ = *s++; @@ -304,19 +304,15 @@ static int ascii2utf (char *s, u8 *utf, int utfmax) * Produces either a manufacturer, product or serial number string for the * virtual root hub device. */ -static int rh_string ( - int id, - struct usb_hcd *hcd, - u8 *data, - int len -) { +static unsigned rh_string(int id, struct usb_hcd *hcd, u8 *data, unsigned len) +{ char buf [100]; // language ids if (id == 0) { buf[0] = 4; buf[1] = 3; /* 4 bytes string data */ buf[2] = 0x09; buf[3] = 0x04; /* MSFT-speak for "en-us" */ - len = min (len, 4); + len = min_t(unsigned, len, 4); memcpy (data, buf, len); return len; @@ -332,10 +328,7 @@ static int rh_string ( } else if (id == 3) { snprintf (buf, sizeof buf, "%s %s %s", init_utsname()->sysname, init_utsname()->release, hcd->driver->description); - - // unsupported IDs --> "protocol stall" - } else - return -EPIPE; + } switch (len) { /* All cases fall through */ default: @@ -360,9 +353,8 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) u8 tbuf [sizeof (struct usb_hub_descriptor)] __attribute__((aligned(4))); const u8 *bufp = tbuf; - int len = 0; + unsigned len = 0; int status; - int n; u8 patch_wakeup = 0; u8 patch_protocol = 0; @@ -456,10 +448,11 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) patch_wakeup = 1; break; case USB_DT_STRING << 8: - n = rh_string (wValue & 0xff, hcd, ubuf, wLength); - if (n < 0) + if ((wValue & 0xff) < 4) + urb->actual_length = rh_string(wValue & 0xff, + hcd, ubuf, wLength); + else /* unsupported IDs --> "protocol stall" */ goto error; - urb->actual_length = n; break; default: goto error; @@ -629,7 +622,7 @@ static int rh_queue_status (struct usb_hcd *hcd, struct urb *urb) { int retval; unsigned long flags; - int len = 1 + (urb->dev->maxchild / 8); + unsigned len = 1 + (urb->dev->maxchild / 8); spin_lock_irqsave (&hcd_root_hub_lock, flags); if (hcd->status_urb || urb->transfer_buffer_length < len) { @@ -901,7 +894,7 @@ static int register_root_hub(struct usb_hcd *hcd) mutex_lock(&usb_bus_list_lock); - usb_dev->ep0.desc.wMaxPacketSize = __constant_cpu_to_le16(64); + usb_dev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); retval = usb_get_device_descriptor(usb_dev, USB_DT_DEVICE_SIZE); if (retval != sizeof usb_dev->descriptor) { mutex_unlock(&usb_bus_list_lock); |