V4L/DVB (8881): gspca: After 'while (retry--) {...}', retry will be -1 but not 0.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/media/video/gspca/conex.c b/drivers/media/video/gspca/conex.c
index 8c91ffde9536..4d9f4cc255a9 100644
--- a/drivers/media/video/gspca/conex.c
+++ b/drivers/media/video/gspca/conex.c
@@ -731,13 +731,13 @@ static void cx11646_jpeg(struct gspca_dev*gspca_dev)
         reg_w_val(gspca_dev, 0x0000, 0x00);
         /* wait for completion */
         retry = 50;
-        while (retry--) {
+        do {
                 reg_r(gspca_dev, 0x0002, 1);
                                                         /* 0x07 until 0x00 */
                 if (gspca_dev->usb_buf[0] == 0x00)
                         break;
                 reg_w_val(gspca_dev, 0x0053, 0x00);
-        }
+        } while (--retry);
         if (retry == 0)
                 PDEBUG(D_ERR, "Damned Errors sending jpeg Table");
         /* send the qtable now */