diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2012-09-09 07:30:02 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-09-13 17:52:58 -0300 |
| commit | 844db450e6e2cf710752af1a019a877af390b541 (patch) | |
| tree | 0c43bce1f503d14cabdad012ff00b6a9c6ad41b8 /drivers/media/usb/gspca/zc3xx.c | |
| parent | ff8f25d326da5e7cf6216f368116744341fceb12 (diff) | |
[media] gspca: Update / fix various comments wrt workqueue usb_lock usage
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/usb/gspca/zc3xx.c')
| -rw-r--r-- | drivers/media/usb/gspca/zc3xx.c | 4 |
1 files changed, 3 insertions, 1 deletions
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; |