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usb: wusbcore: change WA_SEGS_MAX to a legal value
commit f74b75e7f9
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>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
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1 changed files with 3 additions and 2 deletions
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@ -90,7 +90,8 @@
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#include "wusbhc.h"
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enum {
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WA_SEGS_MAX = 255,
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/* [WUSB] section 8.3.3 allocates 7 bits for the segment index. */
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WA_SEGS_MAX = 128,
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};
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enum wa_seg_status {
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@ -444,7 +445,7 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer,
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xfer->seg_size = (xfer->seg_size / maxpktsize) * maxpktsize;
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xfer->segs = (urb->transfer_buffer_length + xfer->seg_size - 1)
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/ xfer->seg_size;
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if (xfer->segs >= WA_SEGS_MAX) {
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if (xfer->segs > WA_SEGS_MAX) {
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dev_err(dev, "BUG? ops, number of segments %d bigger than %d\n",
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(int)(urb->transfer_buffer_length / xfer->seg_size),
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WA_SEGS_MAX);
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