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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>
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commit
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2 changed files with 4 additions and 4 deletions
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@ -731,13 +731,13 @@ static void cx11646_jpeg(struct gspca_dev*gspca_dev)
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reg_w_val(gspca_dev, 0x0000, 0x00);
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/* wait for completion */
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retry = 50;
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while (retry--) {
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do {
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reg_r(gspca_dev, 0x0002, 1);
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/* 0x07 until 0x00 */
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if (gspca_dev->usb_buf[0] == 0x00)
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break;
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reg_w_val(gspca_dev, 0x0053, 0x00);
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}
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} while (--retry);
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if (retry == 0)
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PDEBUG(D_ERR, "Damned Errors sending jpeg Table");
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/* send the qtable now */
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@ -223,11 +223,11 @@ static int i2c_read(struct gspca_dev *gspca_dev, __u16 reg, __u8 mode)
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reg_w_val(gspca_dev->dev, 0x8804, 0x92);
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reg_w_val(gspca_dev->dev, 0x8801, reg);
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reg_w_val(gspca_dev->dev, 0x8802, (mode | 0x01));
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while (retry--) {
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do {
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reg_r(gspca_dev, 0x8803, 1);
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if (!gspca_dev->usb_buf)
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break;
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}
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} while (--retry);
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if (retry == 0)
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return -1;
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reg_r(gspca_dev, 0x8800, 1);
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