[media] gspca - ov519: Don't do USB exchanges after disconnection

Signed-off-by: NJean-François Moine <moinejf@free.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/gspca/ov519.c

@@ -3937,6 +3937,8 @@ static void sd_stop0(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 
+	if (!sd->gspca_dev.present)
+		return;
 	if (sd->bridge == BRIDGE_W9968CF)
 		w9968cf_stop0(sd);
 

drivers/media/video/gspca/w996Xcf.c

@@ -549,10 +549,8 @@ static int w9968cf_mode_init_regs(struct sd *sd)
 
 static void w9968cf_stop0(struct sd *sd)
 {
-	if (sd->gspca_dev.present) {
-		reg_w(sd, 0x39, 0x0000); /* disable JPEG encoder */
-		reg_w(sd, 0x16, 0x0000); /* stop video capture */
-	}
+	reg_w(sd, 0x39, 0x0000); /* disable JPEG encoder */
+	reg_w(sd, 0x16, 0x0000); /* stop video capture */
 }
 
 /* The w9968cf docs say that a 0 sized packet means EOF (and also SOF