diff options
| author | Thomas Pugliese | 2013-10-23 21:44:29 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2013-10-30 00:44:49 +0100 |
| commit | f74b75e7f920c700636cccca669c7d16d12e9202 (patch) | |
| tree | 65428b3ee5c3303a7c0ccce2a34a326fd67931b6 /drivers | |
| parent | usb: wusbcore: add a quirk for Alereon HWA device isoc behavior (diff) | |
| download | kernel-qcow2-linux-f74b75e7f920c700636cccca669c7d16d12e9202.tar.gz kernel-qcow2-linux-f74b75e7f920c700636cccca669c7d16d12e9202.tar.xz kernel-qcow2-linux-f74b75e7f920c700636cccca669c7d16d12e9202.zip | |
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>
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 090ac308c756..ed5abe87b049 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 { @@ -588,7 +589,7 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer, 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", (urb->transfer_buffer_length/xfer->seg_size), WA_SEGS_MAX); |