diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-21 16:50:31 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-21 16:50:31 -0800 |
commit | 13a3cec8443290b082af2a5254562aca247fe591 (patch) | |
tree | 5c873a2c9333be348266234ac5d7101caa1b6d7d /drivers/media/video/v4l2-dev.c | |
parent | 973c9f4f49ca96a53bcf6384c4c59ccd26c33906 (diff) | |
parent | 88914bdf8c677ebd7e797adac05e47303fd6ac77 (diff) |
Merge branch 'media_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'media_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (101 commits)
[media] staging/lirc: fix mem leaks and ptr err usage
[media] hdpvr: reduce latency of i2c read/write w/recycled buffer
[media] hdpvr: enable IR part
[media] rc/mceusb: timeout should be in ns, not us
[media] v4l2-device: fix 'use-after-freed' oops
[media] v4l2-dev: don't memset video_device.dev
[media] zoran: use video_device_alloc instead of kmalloc
[media] w9966: zero device state after a detach
[media] v4l: Fix a use-before-set in the control framework
[media] v4l: Include linux/videodev2.h in media/v4l2-ctrls.h
[media] DocBook/v4l: update V4L2 revision and update copyright years
[media] DocBook/v4l: fix validation error in dev-rds.xml
[media] v4l2-ctrls: queryctrl shouldn't attempt to replace V4L2_CID_PRIVATE_BASE IDs
[media] v4l2-ctrls: fix missing 'read-only' check
[media] pvrusb2: Provide more information about IR units to lirc_zilog and ir-kbd-i2c
[media] ir-kbd-i2c: Add back defaults setting for Zilog Z8's at addr 0x71
[media] lirc_zilog: Update TODO.lirc_zilog
[media] lirc_zilog: Add Andy Walls to copyright notice and authors list
[media] lirc_zilog: Remove useless struct i2c_driver.command function
[media] lirc_zilog: Remove unneeded tests for existence of the IR Tx function
...
Diffstat (limited to 'drivers/media/video/v4l2-dev.c')
-rw-r--r-- | drivers/media/video/v4l2-dev.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c index 359e23290a7..341764a3a99 100644 --- a/drivers/media/video/v4l2-dev.c +++ b/drivers/media/video/v4l2-dev.c @@ -419,6 +419,10 @@ static int get_index(struct video_device *vdev) * The registration code assigns minor numbers and device node numbers * based on the requested type and registers the new device node with * the kernel. + * + * This function assumes that struct video_device was zeroed when it + * was allocated and does not contain any stale date. + * * An error is returned if no free minor or device node number could be * found, or if the registration of the device node failed. * @@ -440,7 +444,6 @@ static int __video_register_device(struct video_device *vdev, int type, int nr, int minor_offset = 0; int minor_cnt = VIDEO_NUM_DEVICES; const char *name_base; - void *priv = vdev->dev.p; /* A minor value of -1 marks this video device as never having been registered */ @@ -559,10 +562,6 @@ static int __video_register_device(struct video_device *vdev, int type, int nr, } /* Part 4: register the device with sysfs */ - memset(&vdev->dev, 0, sizeof(vdev->dev)); - /* The memset above cleared the device's device_private, so - put back the copy we made earlier. */ - vdev->dev.p = priv; vdev->dev.class = &video_class; vdev->dev.devt = MKDEV(VIDEO_MAJOR, vdev->minor); if (vdev->parent) |