From f74b75e7f920c700636cccca669c7d16d12e9202 Mon Sep 17 00:00:00 2001 From: Thomas Pugliese Date: Wed, 23 Oct 2013 14:44:29 -0500 Subject: [PATCH] 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 Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/wusbcore/wa-xfer.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 090ac30..ed5abe8 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); -- 2.7.4