diff options
Diffstat (limited to 'drivers/media/video/sh_vou.c')
-rw-r--r-- | drivers/media/video/sh_vou.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/media/video/sh_vou.c b/drivers/media/video/sh_vou.c index 0f4906136b8f..07cf0c6c7c1f 100644 --- a/drivers/media/video/sh_vou.c +++ b/drivers/media/video/sh_vou.c | |||
@@ -75,6 +75,7 @@ struct sh_vou_device { | |||
75 | int pix_idx; | 75 | int pix_idx; |
76 | struct videobuf_buffer *active; | 76 | struct videobuf_buffer *active; |
77 | enum sh_vou_status status; | 77 | enum sh_vou_status status; |
78 | struct mutex fop_lock; | ||
78 | }; | 79 | }; |
79 | 80 | ||
80 | struct sh_vou_file { | 81 | struct sh_vou_file { |
@@ -235,7 +236,7 @@ static void free_buffer(struct videobuf_queue *vq, struct videobuf_buffer *vb) | |||
235 | vb->state = VIDEOBUF_NEEDS_INIT; | 236 | vb->state = VIDEOBUF_NEEDS_INIT; |
236 | } | 237 | } |
237 | 238 | ||
238 | /* Locking: caller holds vq->vb_lock mutex */ | 239 | /* Locking: caller holds fop_lock mutex */ |
239 | static int sh_vou_buf_setup(struct videobuf_queue *vq, unsigned int *count, | 240 | static int sh_vou_buf_setup(struct videobuf_queue *vq, unsigned int *count, |
240 | unsigned int *size) | 241 | unsigned int *size) |
241 | { | 242 | { |
@@ -257,7 +258,7 @@ static int sh_vou_buf_setup(struct videobuf_queue *vq, unsigned int *count, | |||
257 | return 0; | 258 | return 0; |
258 | } | 259 | } |
259 | 260 | ||
260 | /* Locking: caller holds vq->vb_lock mutex */ | 261 | /* Locking: caller holds fop_lock mutex */ |
261 | static int sh_vou_buf_prepare(struct videobuf_queue *vq, | 262 | static int sh_vou_buf_prepare(struct videobuf_queue *vq, |
262 | struct videobuf_buffer *vb, | 263 | struct videobuf_buffer *vb, |
263 | enum v4l2_field field) | 264 | enum v4l2_field field) |
@@ -306,7 +307,7 @@ static int sh_vou_buf_prepare(struct videobuf_queue *vq, | |||
306 | return 0; | 307 | return 0; |
307 | } | 308 | } |
308 | 309 | ||
309 | /* Locking: caller holds vq->vb_lock mutex and vq->irqlock spinlock */ | 310 | /* Locking: caller holds fop_lock mutex and vq->irqlock spinlock */ |
310 | static void sh_vou_buf_queue(struct videobuf_queue *vq, | 311 | static void sh_vou_buf_queue(struct videobuf_queue *vq, |
311 | struct videobuf_buffer *vb) | 312 | struct videobuf_buffer *vb) |
312 | { | 313 | { |
@@ -1190,7 +1191,7 @@ static int sh_vou_open(struct file *file) | |||
1190 | V4L2_BUF_TYPE_VIDEO_OUTPUT, | 1191 | V4L2_BUF_TYPE_VIDEO_OUTPUT, |
1191 | V4L2_FIELD_NONE, | 1192 | V4L2_FIELD_NONE, |
1192 | sizeof(struct videobuf_buffer), vdev, | 1193 | sizeof(struct videobuf_buffer), vdev, |
1193 | NULL); | 1194 | &vou_dev->fop_lock); |
1194 | 1195 | ||
1195 | return 0; | 1196 | return 0; |
1196 | } | 1197 | } |
@@ -1292,7 +1293,7 @@ static const struct v4l2_file_operations sh_vou_fops = { | |||
1292 | .owner = THIS_MODULE, | 1293 | .owner = THIS_MODULE, |
1293 | .open = sh_vou_open, | 1294 | .open = sh_vou_open, |
1294 | .release = sh_vou_release, | 1295 | .release = sh_vou_release, |
1295 | .ioctl = video_ioctl2, | 1296 | .unlocked_ioctl = video_ioctl2, |
1296 | .mmap = sh_vou_mmap, | 1297 | .mmap = sh_vou_mmap, |
1297 | .poll = sh_vou_poll, | 1298 | .poll = sh_vou_poll, |
1298 | }; | 1299 | }; |
@@ -1331,6 +1332,7 @@ static int __devinit sh_vou_probe(struct platform_device *pdev) | |||
1331 | 1332 | ||
1332 | INIT_LIST_HEAD(&vou_dev->queue); | 1333 | INIT_LIST_HEAD(&vou_dev->queue); |
1333 | spin_lock_init(&vou_dev->lock); | 1334 | spin_lock_init(&vou_dev->lock); |
1335 | mutex_init(&vou_dev->fop_lock); | ||
1334 | atomic_set(&vou_dev->use_count, 0); | 1336 | atomic_set(&vou_dev->use_count, 0); |
1335 | vou_dev->pdata = vou_pdata; | 1337 | vou_dev->pdata = vou_pdata; |
1336 | vou_dev->status = SH_VOU_IDLE; | 1338 | vou_dev->status = SH_VOU_IDLE; |
@@ -1388,6 +1390,7 @@ static int __devinit sh_vou_probe(struct platform_device *pdev) | |||
1388 | vdev->tvnorms |= V4L2_STD_PAL; | 1390 | vdev->tvnorms |= V4L2_STD_PAL; |
1389 | vdev->v4l2_dev = &vou_dev->v4l2_dev; | 1391 | vdev->v4l2_dev = &vou_dev->v4l2_dev; |
1390 | vdev->release = video_device_release; | 1392 | vdev->release = video_device_release; |
1393 | vdev->lock = &vou_dev->fop_lock; | ||
1391 | 1394 | ||
1392 | vou_dev->vdev = vdev; | 1395 | vou_dev->vdev = vdev; |
1393 | video_set_drvdata(vdev, vou_dev); | 1396 | video_set_drvdata(vdev, vou_dev); |
@@ -1406,7 +1409,7 @@ static int __devinit sh_vou_probe(struct platform_device *pdev) | |||
1406 | goto ereset; | 1409 | goto ereset; |
1407 | 1410 | ||
1408 | subdev = v4l2_i2c_new_subdev_board(&vou_dev->v4l2_dev, i2c_adap, | 1411 | subdev = v4l2_i2c_new_subdev_board(&vou_dev->v4l2_dev, i2c_adap, |
1409 | NULL, vou_pdata->board_info, NULL); | 1412 | vou_pdata->board_info, NULL); |
1410 | if (!subdev) { | 1413 | if (!subdev) { |
1411 | ret = -ENOMEM; | 1414 | ret = -ENOMEM; |
1412 | goto ei2cnd; | 1415 | goto ei2cnd; |