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usb: wusbcore: change WA_SEGS_MAX to a legal value 

change WA_SEGS_MAX to a number that is legal according to the WUSB
spec.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Thomas Pugliese 2013-10-23 14:44:29 -05:00 committed by Greg Kroah-Hartman
parent f07ddb9ef5
commit f74b75e7f9
1 changed files with 3 additions and 2 deletions
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5
drivers/usb/wusbcore/wa-xfer.c
View File

@ -91,7 +91,8 @@
#include "wusbhc.h" #include "wusbhc.h"
enum { enum {
WA_SEGS_MAX = 255, /* [WUSB] section 8.3.3 allocates 7 bits for the segment index. */
WA_SEGS_MAX = 128,
}; };
enum wa_seg_status { enum wa_seg_status {
@ -588,7 +589,7 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer,
xfer->segs = 1; xfer->segs = 1;
} }
if (xfer->segs >= WA_SEGS_MAX) { if (xfer->segs > WA_SEGS_MAX) {
dev_err(dev, "BUG? oops, number of segments %zu bigger than %d\n", dev_err(dev, "BUG? oops, number of segments %zu bigger than %d\n",
(urb->transfer_buffer_length/xfer->seg_size), (urb->transfer_buffer_length/xfer->seg_size),
WA_SEGS_MAX); WA_SEGS_MAX);