diff options
| author | Greg Kroah-Hartman <gregkh@suse.de> | 2009-03-03 16:44:13 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-03-24 16:20:36 -0700 |
| commit | 16e2e5f634f86ccda18366967c4e592eb61bc9cc (patch) | |
| tree | c736a81517e929559c83cc5eb9fb6f4d04458571 /drivers/usb | |
| parent | 7ea0a2bcfe40b1c525e63e931b7142ab22b64269 (diff) | |
USB: make transfer_buffer_lengths in struct urb field u32
Roel Kluin pointed out that transfer_buffer_lengths in struct urb was
declared as an 'int'. This patch changes this field to be 'u32' to
prevent any potential negative conversion and comparison errors.
This triggered a few compiler warning messages when these fields were
being used with the min macro, so they have also been fixed up in this
patch.
Cc: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/dummy_hcd.c | 2 | ||||
| -rw-r--r-- | drivers/usb/host/isp116x-hcd.c | 2 | ||||
| -rw-r--r-- | drivers/usb/host/r8a66597-hcd.c | 2 | ||||
| -rw-r--r-- | drivers/usb/host/sl811-hcd.c | 4 | ||||
| -rw-r--r-- | drivers/usb/misc/ftdi-elan.c | 6 |
5 files changed, 8 insertions, 8 deletions
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 3b42888b72f..a56b24d305f 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -1437,7 +1437,7 @@ restart: } if (urb->transfer_buffer_length > 1) buf [1] = 0; - urb->actual_length = min (2, + urb->actual_length = min_t(u32, 2, urb->transfer_buffer_length); value = 0; status = 0; diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c index 4dda31b2689..a2b305477af 100644 --- a/drivers/usb/host/isp116x-hcd.c +++ b/drivers/usb/host/isp116x-hcd.c @@ -772,7 +772,7 @@ static int isp116x_urb_enqueue(struct usb_hcd *hcd, break; case PIPE_INTERRUPT: urb->interval = ep->period; - ep->length = min((int)ep->maxpacket, + ep->length = min_t(u32, ep->maxpacket, urb->transfer_buffer_length); /* urb submitted for already existing endpoint */ diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 5e942d94aeb..713f4cf0b0d 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -1394,7 +1394,7 @@ static void packet_write(struct r8a66597 *r8a66597, u16 pipenum) (int)urb->iso_frame_desc[td->iso_cnt].length); } else { buf = (u16 *)(urb->transfer_buffer + urb->actual_length); - size = min((int)bufsize, + size = min_t(u32, bufsize, urb->transfer_buffer_length - urb->actual_length); } diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c index e106e9d48d4..a949259f18b 100644 --- a/drivers/usb/host/sl811-hcd.c +++ b/drivers/usb/host/sl811-hcd.c @@ -230,7 +230,7 @@ static void in_packet( writeb(usb_pipedevice(urb->pipe), data_reg); sl811_write(sl811, bank + SL11H_HOSTCTLREG, control); - ep->length = min((int)len, + ep->length = min_t(u32, len, urb->transfer_buffer_length - urb->actual_length); PACKET("IN%s/%d qh%p len%d\n", ep->nak_count ? "/retry" : "", !!usb_gettoggle(urb->dev, ep->epnum, 0), ep, len); @@ -255,7 +255,7 @@ static void out_packet( buf = urb->transfer_buffer + urb->actual_length; prefetch(buf); - len = min((int)ep->maxpacket, + len = min_t(u32, ep->maxpacket, urb->transfer_buffer_length - urb->actual_length); if (!(control & SL11H_HCTLMASK_ISOCH) diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c index 79a7668ef26..9d0675ed0d4 100644 --- a/drivers/usb/misc/ftdi-elan.c +++ b/drivers/usb/misc/ftdi-elan.c @@ -1568,7 +1568,7 @@ static int ftdi_elan_edset_input(struct usb_ftdi *ftdi, u8 ed_number, struct u132_target *target = &ftdi->target[ed]; struct u132_command *command = &ftdi->command[ COMMAND_MASK & ftdi->command_next]; - int remaining_length = urb->transfer_buffer_length - + u32 remaining_length = urb->transfer_buffer_length - urb->actual_length; command->header = 0x82 | (ed << 5); if (remaining_length == 0) { @@ -1702,7 +1702,7 @@ static int ftdi_elan_edset_output(struct usb_ftdi *ftdi, u8 ed_number, | (address << 0); command->width = usb_maxpacket(urb->dev, urb->pipe, usb_pipeout(urb->pipe)); - command->follows = min(1024, + command->follows = min_t(u32, 1024, urb->transfer_buffer_length - urb->actual_length); command->value = 0; @@ -1766,7 +1766,7 @@ static int ftdi_elan_edset_single(struct usb_ftdi *ftdi, u8 ed_number, mutex_lock(&ftdi->u132_lock); command_size = ftdi->command_next - ftdi->command_head; if (command_size < COMMAND_SIZE) { - int remaining_length = urb->transfer_buffer_length - + u32 remaining_length = urb->transfer_buffer_length - urb->actual_length; struct u132_target *target = &ftdi->target[ed]; struct u132_command *command = &ftdi->command[ |