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[media] gspca - sonixj: Fix a zero divide in isoc interrupt

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In case of short marker, the number of received packets was not
incremented doing a zero divide when computing the filling rate.

Reported-by: Hans Petter Selasky <[email protected]>
Signed-off-by: Jean-François Moine <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Jean-François Moine 2012-05-02 04:05:18 -03:00 • committed by Mauro Carvalho Chehab
commit 788ab1bb03
1 changed files with 4 additions and 4 deletions
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8
drivers/media/video/gspca/sonixj.c
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@ -2923,6 +2923,10 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
* not the JPEG end of frame ('ff d9').
*/
/* count the packets and their size */
sd->npkt++;
sd->pktsz += len;
/*fixme: assumption about the following code:
* - there can be only one marker in a packet
*/
@ -2945,10 +2949,6 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
data += i;
}
/* count the packets and their size */
sd->npkt++;
sd->pktsz += len;
/* search backwards if there is a marker in the packet */
for (i = len - 1; --i >= 0; ) {
if (data[i] != 0xff) {