From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
The core debug code can now be simplified since all the write-only ioctls are
now const and will not modify the data they pass to the drivers.
So instead of logging write-only ioctls before the driver is called this can
now be done afterwards, which is cleaner when it comes to error reporting as
well.
This also fixes a logic error in the debugging code where there was one 'else'
too many.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
drivers/media/v4l2-core/v4l2-ioctl.c | 15 ++-------------
1 file changed, 2 insertions(+), 13 deletions(-)
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
index 2abd13a..b3fe148 100644
--- a/drivers/media/v4l2-core/v4l2-ioctl.c
+++ b/drivers/media/v4l2-core/v4l2-ioctl.c
@@ -2147,11 +2147,6 @@ static long __video_do_ioctl(struct file *file,
}
write_only = _IOC_DIR(cmd) == _IOC_WRITE;
- if (write_only && debug > V4L2_DEBUG_IOCTL) {
- v4l_printk_ioctl(video_device_node_name(vfd), cmd);
- pr_cont(": ");
- info->debug(arg, write_only);
- }
if (info->flags & INFO_FL_STD) {
typedef int (*vidioc_op)(struct file *file, void *fh, void *p);
const void *p = vfd->ioctl_ops;
@@ -2170,16 +2165,10 @@ static long __video_do_ioctl(struct file *file,
done:
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);
- return ret;
- }
v4l_printk_ioctl(video_device_node_name(vfd), cmd);
if (ret < 0)
- pr_cont(": error %ld\n", ret);
- else if (debug == V4L2_DEBUG_IOCTL)
+ pr_cont(": error %ld", ret);
+ if (debug == V4L2_DEBUG_IOCTL)
pr_cont("\n");
else if (_IOC_DIR(cmd) == _IOC_NONE)
info->debug(arg, write_only);
--
1.7.10.4
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