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USB: make transfer_buffer_lengths in struct urb field u32

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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>
This commit is contained in:
Greg Kroah-Hartman 2009-03-03 16:44:13 -08:00
parent 7ea0a2bcfe
commit 16e2e5f634
6 changed files with 9 additions and 9 deletions
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2
include/linux/usb.h
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@ -1177,7 +1177,7 @@ struct urb {
unsigned int transfer_flags; /* (in) URB_SHORT_NOT_OK | ...*/
void *transfer_buffer; /* (in) associated data buffer */
dma_addr_t transfer_dma; /* (in) dma addr for transfer_buffer */
int transfer_buffer_length; /* (in) data buffer length */
u32 transfer_buffer_length; /* (in) data buffer length */
int actual_length; /* (return) actual transfer length */
unsigned char *setup_packet; /* (in) setup packet (control only) */
dma_addr_t setup_dma; /* (in) dma addr for setup_packet */