diff options
| author | Thomas Pugliese <thomas.pugliese@gmail.com> | 2013-10-23 14:44:29 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-08 07:29:16 -0800 |
| commit | aafc56772e2156d2c28fe6ce072d115c0e34834e (patch) | |
| tree | e635b3966f791953659e191642c1f1bebbd5c8d0 /drivers | |
| parent | ed32875deb3b4e319a94042db8e8e1f7fef2591a (diff) | |
usb: wusbcore: change WA_SEGS_MAX to a legal value
commit f74b75e7f920c700636cccca669c7d16d12e9202 upstream.
change WA_SEGS_MAX to a number that is legal according to the WUSB
spec.
Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/wusbcore/wa-xfer.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 6ad02f57c366..3dcf66f345e9 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -91,7 +91,8 @@ #include "wusbhc.h" 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 { @@ -446,7 +447,7 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer, } xfer->seg_size = (xfer->seg_size / maxpktsize) * maxpktsize; xfer->segs = DIV_ROUND_UP(urb->transfer_buffer_length, xfer->seg_size); - if (xfer->segs >= WA_SEGS_MAX) { + if (xfer->segs > WA_SEGS_MAX) { dev_err(dev, "BUG? ops, number of segments %d bigger than %d\n", (int)(urb->transfer_buffer_length / xfer->seg_size), WA_SEGS_MAX); |