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| author | Takashi Iwai <tiwai@suse.de> | 2009-12-04 16:22:32 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-12-04 16:22:32 +0100 |
| commit | 79598324838a25cc378ecbb8c29dd1e3d3951d35 (patch) | |
| tree | 7d29e81580cba854042df4e33bdc8f38bbd65d03 /drivers/usb/mon/mon_bin.c | |
| parent | 8ee763b9c82c6ca0a59a7271ce4fa29d7baf5c09 (diff) | |
| parent | b00615d163cd24fa98d155acfc1f9d81d6fe1103 (diff) | |
Merge branch 'topic/core-change' into for-linus
Diffstat (limited to 'drivers/usb/mon/mon_bin.c')
| -rw-r--r-- | drivers/usb/mon/mon_bin.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index 9ed3e741bee..10f3205798e 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c @@ -348,12 +348,12 @@ static unsigned int mon_buff_area_alloc_contiguous(struct mon_reader_bin *rp, /* * Return a few (kilo-)bytes to the head of the buffer. - * This is used if a DMA fetch fails. + * This is used if a data fetch fails. */ static void mon_buff_area_shrink(struct mon_reader_bin *rp, unsigned int size) { - size = (size + PKT_ALIGN-1) & ~(PKT_ALIGN-1); + /* size &= ~(PKT_ALIGN-1); -- we're called with aligned size */ rp->b_cnt -= size; if (rp->b_in < size) rp->b_in += rp->b_size; @@ -433,6 +433,7 @@ static void mon_bin_event(struct mon_reader_bin *rp, struct urb *urb, unsigned int urb_length; unsigned int offset; unsigned int length; + unsigned int delta; unsigned int ndesc, lendesc; unsigned char dir; struct mon_bin_hdr *ep; @@ -537,8 +538,10 @@ static void mon_bin_event(struct mon_reader_bin *rp, struct urb *urb, if (length != 0) { ep->flag_data = mon_bin_get_data(rp, offset, urb, length); if (ep->flag_data != 0) { /* Yes, it's 0x00, not '0' */ - ep->len_cap = 0; - mon_buff_area_shrink(rp, length); + delta = (ep->len_cap + PKT_ALIGN-1) & ~(PKT_ALIGN-1); + ep->len_cap -= length; + delta -= (ep->len_cap + PKT_ALIGN-1) & ~(PKT_ALIGN-1); + mon_buff_area_shrink(rp, delta); } } else { ep->flag_data = data_tag; |