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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-31 18:47:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-31 18:47:44 -0700
commit8762541f067d371320731510669e27f5cc40af38 (patch)
treefa2890094858614a947ba70612854acde9888940 /drivers/media/video/v4l2-dev.c
parent6dbb35b0a74b44b2a48a5373d48074c5aa69fdf5 (diff)
parentadfe1560de1c696324554fba70c92f2d7c947ff7 (diff)
downloadlinux-8762541f067d371320731510669e27f5cc40af38.tar.gz
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull second set of media updates from Mauro Carvalho Chehab: - radio API: add support to work with radio frequency bands - new AM/FM radio drivers: radio-shark, radio-shark2 - new Remote Controller USB driver: iguanair - conversion of several drivers to the v4l2 core control framework - new board additions at existing drivers - the remaining (and vast majority of the patches) are due to drivers/DocBook fixes/cleanups. * 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (154 commits) [media] radio-tea5777: use library for 64bits div [media] tlg2300: Declare MODULE_FIRMWARE usage [media] lgs8gxx: Declare MODULE_FIRMWARE usage [media] xc5000: Add MODULE_FIRMWARE statements [media] s2255drv: Add MODULE_FIRMWARE statement [media] dib8000: move dereference after check for NULL [media] Documentation: Update cardlists [media] bttv: add support for Aposonic W-DVR [media] cx25821: Remove bad strcpy to read-only char* [media] pms.c: remove duplicated include [media] smiapp-core.c: remove duplicated include [media] via-camera: pass correct format settings to sensor [media] rtl2832.c: minor cleanup [media] Add support for the IguanaWorks USB IR Transceiver [media] Minor cleanups for MCE USB [media] drivers/media/dvb/siano/smscoreapi.c: use list_for_each_entry [media] Use a named union in struct v4l2_ioctl_info [media] mceusb: Add Twisted Melon USB IDs [media] staging/media/solo6x10: use module_pci_driver macro [media] staging/media/dt3155v4l: use module_pci_driver macro ... Conflicts: Documentation/feature-removal-schedule.txt
Diffstat (limited to 'drivers/media/video/v4l2-dev.c')
-rw-r--r--drivers/media/video/v4l2-dev.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index af70f931727c..07aeafca9eaa 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -478,12 +478,12 @@ static int v4l2_open(struct inode *inode, struct file *filp)
}
err:
- /* decrease the refcount in case of an error */
- if (ret)
- video_put(vdev);
if (vdev->debug)
printk(KERN_DEBUG "%s: open (%d)\n",
video_device_node_name(vdev), ret);
+ /* decrease the refcount in case of an error */
+ if (ret)
+ video_put(vdev);
return ret;
}
@@ -500,12 +500,12 @@ static int v4l2_release(struct inode *inode, struct file *filp)
if (test_bit(V4L2_FL_LOCK_ALL_FOPS, &vdev->flags))
mutex_unlock(vdev->lock);
}
- /* decrease the refcount unconditionally since the release()
- return value is ignored. */
- video_put(vdev);
if (vdev->debug)
printk(KERN_DEBUG "%s: release\n",
video_device_node_name(vdev));
+ /* decrease the refcount unconditionally since the release()
+ return value is ignored. */
+ video_put(vdev);
return ret;
}
@@ -697,7 +697,8 @@ static void determine_valid_ioctls(struct video_device *vdev)
SET_VALID_IOCTL(ops, VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd);
SET_VALID_IOCTL(ops, VIDIOC_DECODER_CMD, vidioc_decoder_cmd);
SET_VALID_IOCTL(ops, VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd);
- if (ops->vidioc_g_parm || vdev->vfl_type == VFL_TYPE_GRABBER)
+ if (ops->vidioc_g_parm || (vdev->vfl_type == VFL_TYPE_GRABBER &&
+ (ops->vidioc_g_std || vdev->tvnorms)))
set_bit(_IOC_NR(VIDIOC_G_PARM), valid_ioctls);
SET_VALID_IOCTL(ops, VIDIOC_S_PARM, vidioc_s_parm);
SET_VALID_IOCTL(ops, VIDIOC_G_TUNER, vidioc_g_tuner);
@@ -729,6 +730,8 @@ static void determine_valid_ioctls(struct video_device *vdev)
SET_VALID_IOCTL(ops, VIDIOC_UNSUBSCRIBE_EVENT, vidioc_unsubscribe_event);
SET_VALID_IOCTL(ops, VIDIOC_CREATE_BUFS, vidioc_create_bufs);
SET_VALID_IOCTL(ops, VIDIOC_PREPARE_BUF, vidioc_prepare_buf);
+ if (ops->vidioc_enum_freq_bands || ops->vidioc_g_tuner || ops->vidioc_g_modulator)
+ set_bit(_IOC_NR(VIDIOC_ENUM_FREQ_BANDS), valid_ioctls);
bitmap_andnot(vdev->valid_ioctls, valid_ioctls, vdev->valid_ioctls,
BASE_VIDIOC_PRIVATE);
}