diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2012-06-22 11:37:38 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2012-07-06 22:25:31 +0200 |
| commit | 80131fe06e0bdd7b429594493c1317ddede89a61 (patch) | |
| tree | 645af85d4922b22b7c457bcfcf1005b22e1439d6 /drivers/media/video/v4l2-ioctl.c | |
| parent | [media] v4l2-ioctl.c: finalize table conversion (diff) | |
| download | linux-80131fe06e0bdd7b429594493c1317ddede89a61.tar.xz linux-80131fe06e0bdd7b429594493c1317ddede89a61.zip | |
[media] v4l2-dev.c: add debug sysfs entry
Since this could theoretically change the debug value while in the middle
of v4l2-ioctl.c, we make a copy of vfd->debug to ensure consistent debug
behavior.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/v4l2-ioctl.c')
| -rw-r--r-- | drivers/media/video/v4l2-ioctl.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c index 9ded54b16e88..273c6d7bef65 100644 --- a/drivers/media/video/v4l2-ioctl.c +++ b/drivers/media/video/v4l2-ioctl.c @@ -1999,6 +1999,7 @@ static long __video_do_ioctl(struct file *file, void *fh = file->private_data; struct v4l2_fh *vfh = NULL; int use_fh_prio = 0; + int debug = vfd->debug; long ret = -ENOTTY; if (ops == NULL) { @@ -2032,7 +2033,7 @@ static long __video_do_ioctl(struct file *file, } write_only = _IOC_DIR(cmd) == _IOC_WRITE; - if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) { + if (write_only && debug > V4L2_DEBUG_IOCTL) { v4l_print_ioctl(vfd->name, cmd); pr_cont(": "); info->debug(arg, write_only); @@ -2054,8 +2055,8 @@ static long __video_do_ioctl(struct file *file, } done: - if (vfd->debug) { - if (write_only && vfd->debug > V4L2_DEBUG_IOCTL) { + if (debug) { + if (write_only && debug > V4L2_DEBUG_IOCTL) { if (ret < 0) printk(KERN_DEBUG "%s: error %ld\n", video_device_node_name(vfd), ret); @@ -2064,7 +2065,7 @@ done: v4l_print_ioctl(vfd->name, cmd); if (ret < 0) pr_cont(": error %ld\n", ret); - else if (vfd->debug == V4L2_DEBUG_IOCTL) + else if (debug == V4L2_DEBUG_IOCTL) pr_cont("\n"); else if (_IOC_DIR(cmd) == _IOC_NONE) info->debug(arg, write_only); |