X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=drivers%2Fmedia%2Fusb%2Fgspca%2Fzc3xx.c;h=c47ba14c76190ebaa89ff62463e7ad7b2d82388f;hb=844db450e6e2cf710752af1a019a877af390b541;hp=234d9eaa8eea31e5edf4b02e02e85c8de01b825d;hpb=ff8f25d326da5e7cf6216f368116744341fceb12;p=~andy%2Flinux

diff --git a/drivers/media/usb/gspca/zc3xx.c b/drivers/media/usb/gspca/zc3xx.c
index 234d9eaa8ee..c47ba14c761 100644
--- a/drivers/media/usb/gspca/zc3xx.c
+++ b/drivers/media/usb/gspca/zc3xx.c
@@ -5945,6 +5945,7 @@ static void transfer_update(struct work_struct *work)
 	for (;;) {
 		msleep(100);
 
+		/* To protect gspca_dev->usb_buf and gspca_dev->usb_err */
 		mutex_lock(&gspca_dev->usb_lock);
 #ifdef CONFIG_PM
 		if (gspca_dev->frozen)
@@ -6831,7 +6832,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	return 0;
 }
 
-/* called on streamoff with alt 0 and on disconnect */
+/* called on streamoff with alt==0 and on disconnect */
+/* the usb_lock is held at entry - restore on exit */
 static void sd_stop0(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;