summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/media/Kconfig1
-rw-r--r--drivers/media/video/cx231xx/cx231xx-417.c6
-rw-r--r--drivers/media/video/cx23885/cx23885-417.c9
-rw-r--r--drivers/media/video/cx23885/cx23885-video.c5
-rw-r--r--drivers/media/video/se401.c7
-rw-r--r--drivers/media/video/stk-webcam.c4
-rw-r--r--drivers/media/video/tlg2300/pd-main.c13
-rw-r--r--drivers/media/video/usbvideo/vicam.c29
-rw-r--r--drivers/media/video/v4l2-dev.c7
-rw-r--r--drivers/media/video/zoran/zoran.h1
-rw-r--r--drivers/media/video/zoran/zoran_card.c1
-rw-r--r--drivers/media/video/zoran/zoran_driver.c27
12 files changed, 51 insertions, 59 deletions
diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
index bad2cedb8d96..a28541b2b1a2 100644
--- a/drivers/media/Kconfig
+++ b/drivers/media/Kconfig
@@ -19,7 +19,6 @@ comment "Multimedia core support"
config VIDEO_DEV
tristate "Video For Linux"
- depends on BKL # used in many drivers for ioctl handling, need to kill
---help---
V4L core support for video capture and overlay devices, webcams and
AM/FM radio cards.
diff --git a/drivers/media/video/cx231xx/cx231xx-417.c b/drivers/media/video/cx231xx/cx231xx-417.c
index aab21f3ce472..4c7cac3b6254 100644
--- a/drivers/media/video/cx231xx/cx231xx-417.c
+++ b/drivers/media/video/cx231xx/cx231xx-417.c
@@ -31,7 +31,6 @@
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/firmware.h>
-#include <linux/smp_lock.h>
#include <linux/vmalloc.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
@@ -1927,10 +1926,9 @@ static int mpeg_open(struct file *file)
dev = h;
}
- if (dev == NULL) {
- unlock_kernel();
+ if (dev == NULL)
return -ENODEV;
- }
+
mutex_lock(&dev->lock);
/* allocate + initialize per filehandle data */
diff --git a/drivers/media/video/cx23885/cx23885-417.c b/drivers/media/video/cx23885/cx23885-417.c
index a6cc12f8736c..9a98dc55f657 100644
--- a/drivers/media/video/cx23885/cx23885-417.c
+++ b/drivers/media/video/cx23885/cx23885-417.c
@@ -31,7 +31,6 @@
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/firmware.h>
-#include <linux/smp_lock.h>
#include <linux/slab.h>
#include <media/v4l2-common.h>
#include <media/v4l2-ioctl.h>
@@ -1576,12 +1575,8 @@ static int mpeg_open(struct file *file)
/* allocate + initialize per filehandle data */
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
- if (NULL == fh) {
- unlock_kernel();
+ if (!fh)
return -ENOMEM;
- }
-
- lock_kernel();
file->private_data = fh;
fh->dev = dev;
@@ -1592,8 +1587,6 @@ static int mpeg_open(struct file *file)
V4L2_FIELD_INTERLACED,
sizeof(struct cx23885_buffer),
fh, NULL);
- unlock_kernel();
-
return 0;
}
diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c
index 93af9c65b484..3cc9f462d08d 100644
--- a/drivers/media/video/cx23885/cx23885-video.c
+++ b/drivers/media/video/cx23885/cx23885-video.c
@@ -26,7 +26,6 @@
#include <linux/kmod.h>
#include <linux/kernel.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/kthread.h>
@@ -743,8 +742,6 @@ static int video_open(struct file *file)
if (NULL == fh)
return -ENOMEM;
- lock_kernel();
-
file->private_data = fh;
fh->dev = dev;
fh->radio = radio;
@@ -762,8 +759,6 @@ static int video_open(struct file *file)
dprintk(1, "post videobuf_queue_init()\n");
- unlock_kernel();
-
return 0;
}
diff --git a/drivers/media/video/se401.c b/drivers/media/video/se401.c
index 41d0166c0f95..41360d7c3e96 100644
--- a/drivers/media/video/se401.c
+++ b/drivers/media/video/se401.c
@@ -31,7 +31,6 @@ static const char version[] = "0.24";
#include <linux/init.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <linux/pagemap.h>
#include <linux/usb.h>
#include "se401.h"
@@ -951,9 +950,9 @@ static int se401_open(struct file *file)
struct usb_se401 *se401 = (struct usb_se401 *)dev;
int err = 0;
- lock_kernel();
+ mutex_lock(&se401->lock);
if (se401->user) {
- unlock_kernel();
+ mutex_unlock(&se401->lock);
return -EBUSY;
}
se401->fbuf = rvmalloc(se401->maxframesize * SE401_NUMFRAMES);
@@ -962,7 +961,7 @@ static int se401_open(struct file *file)
else
err = -ENOMEM;
se401->user = !err;
- unlock_kernel();
+ mutex_unlock(&se401->lock);
return err;
}
diff --git a/drivers/media/video/stk-webcam.c b/drivers/media/video/stk-webcam.c
index f07a0f6b71c4..b5afe5f841ce 100644
--- a/drivers/media/video/stk-webcam.c
+++ b/drivers/media/video/stk-webcam.c
@@ -27,7 +27,6 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <linux/usb.h>
#include <linux/mm.h>
@@ -673,14 +672,11 @@ static int v4l_stk_open(struct file *fp)
vdev = video_devdata(fp);
dev = vdev_to_camera(vdev);
- lock_kernel();
if (dev == NULL || !is_present(dev)) {
- unlock_kernel();
return -ENXIO;
}
fp->private_data = dev;
usb_autopm_get_interface(dev->interface);
- unlock_kernel();
return 0;
}
diff --git a/drivers/media/video/tlg2300/pd-main.c b/drivers/media/video/tlg2300/pd-main.c
index 4555f4a5f4c8..c91424c0c135 100644
--- a/drivers/media/video/tlg2300/pd-main.c
+++ b/drivers/media/video/tlg2300/pd-main.c
@@ -36,7 +36,6 @@
#include <linux/string.h>
#include <linux/types.h>
#include <linux/firmware.h>
-#include <linux/smp_lock.h>
#include "vendorcmds.h"
#include "pd-common.h"
@@ -485,15 +484,11 @@ static void poseidon_disconnect(struct usb_interface *interface)
/*unregister v4l2 device */
v4l2_device_unregister(&pd->v4l2_dev);
- lock_kernel();
- {
- pd_dvb_usb_device_exit(pd);
- poseidon_fm_exit(pd);
+ pd_dvb_usb_device_exit(pd);
+ poseidon_fm_exit(pd);
- poseidon_audio_free(pd);
- pd_video_exit(pd);
- }
- unlock_kernel();
+ poseidon_audio_free(pd);
+ pd_video_exit(pd);
usb_set_intfdata(interface, NULL);
kref_put(&pd->kref, poseidon_delete);
diff --git a/drivers/media/video/usbvideo/vicam.c b/drivers/media/video/usbvideo/vicam.c
index 5d6fd01f918a..dc17cce2fbb6 100644
--- a/drivers/media/video/usbvideo/vicam.c
+++ b/drivers/media/video/usbvideo/vicam.c
@@ -43,7 +43,6 @@
#include <linux/vmalloc.h>
#include <linux/mm.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <linux/mutex.h>
#include <linux/firmware.h>
#include <linux/ihex.h>
@@ -483,29 +482,28 @@ vicam_open(struct file *file)
return -EINVAL;
}
- /* the videodev_lock held above us protects us from
- * simultaneous opens...for now. we probably shouldn't
- * rely on this fact forever.
+ /* cam_lock/open_count protects us from simultaneous opens
+ * ... for now. we probably shouldn't rely on this fact forever.
*/
- lock_kernel();
+ mutex_lock(&cam->cam_lock);
if (cam->open_count > 0) {
printk(KERN_INFO
"vicam_open called on already opened camera");
- unlock_kernel();
+ mutex_unlock(&cam->cam_lock);
return -EBUSY;
}
cam->raw_image = kmalloc(VICAM_MAX_READ_SIZE, GFP_KERNEL);
if (!cam->raw_image) {
- unlock_kernel();
+ mutex_unlock(&cam->cam_lock);
return -ENOMEM;
}
cam->framebuf = rvmalloc(VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
if (!cam->framebuf) {
kfree(cam->raw_image);
- unlock_kernel();
+ mutex_unlock(&cam->cam_lock);
return -ENOMEM;
}
@@ -513,10 +511,17 @@ vicam_open(struct file *file)
if (!cam->cntrlbuf) {
kfree(cam->raw_image);
rvfree(cam->framebuf, VICAM_MAX_FRAME_SIZE * VICAM_FRAMES);
- unlock_kernel();
+ mutex_unlock(&cam->cam_lock);
return -ENOMEM;
}
+ cam->needsDummyRead = 1;
+ cam->open_count++;
+
+ file->private_data = cam;
+ mutex_unlock(&cam->cam_lock);
+
+
// First upload firmware, then turn the camera on
if (!cam->is_initialized) {
@@ -527,12 +532,6 @@ vicam_open(struct file *file)
set_camera_power(cam, 1);
- cam->needsDummyRead = 1;
- cam->open_count++;
-
- file->private_data = cam;
- unlock_kernel();
-
return 0;
}
diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c
index 0ca7978654b5..03f7f4670e9b 100644
--- a/drivers/media/video/v4l2-dev.c
+++ b/drivers/media/video/v4l2-dev.c
@@ -25,7 +25,6 @@
#include <linux/init.h>
#include <linux/kmod.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <asm/uaccess.h>
#include <asm/system.h>
@@ -247,10 +246,12 @@ static long v4l2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
mutex_unlock(vdev->lock);
} else if (vdev->fops->ioctl) {
/* TODO: convert all drivers to unlocked_ioctl */
- lock_kernel();
+ static DEFINE_MUTEX(v4l2_ioctl_mutex);
+
+ mutex_lock(&v4l2_ioctl_mutex);
if (video_is_registered(vdev))
ret = vdev->fops->ioctl(filp, cmd, arg);
- unlock_kernel();
+ mutex_unlock(&v4l2_ioctl_mutex);
} else
ret = -ENOTTY;
diff --git a/drivers/media/video/zoran/zoran.h b/drivers/media/video/zoran/zoran.h
index 37fe16181e3c..27f05551183f 100644
--- a/drivers/media/video/zoran/zoran.h
+++ b/drivers/media/video/zoran/zoran.h
@@ -388,6 +388,7 @@ struct zoran {
struct videocodec *vfe; /* video front end */
struct mutex resource_lock; /* prevent evil stuff */
+ struct mutex other_lock; /* please merge with above */
u8 initialized; /* flag if zoran has been correctly initialized */
int user; /* number of current users */
diff --git a/drivers/media/video/zoran/zoran_card.c b/drivers/media/video/zoran/zoran_card.c
index 0aac376c3f7a..7e6d62467eaa 100644
--- a/drivers/media/video/zoran/zoran_card.c
+++ b/drivers/media/video/zoran/zoran_card.c
@@ -1227,6 +1227,7 @@ static int __devinit zoran_probe(struct pci_dev *pdev,
snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "MJPEG[%u]", zr->id);
spin_lock_init(&zr->spinlock);
mutex_init(&zr->resource_lock);
+ mutex_init(&zr->other_lock);
if (pci_enable_device(pdev))
goto zr_unreg;
pci_read_config_byte(zr->pci_dev, PCI_CLASS_REVISION, &zr->revision);
diff --git a/drivers/media/video/zoran/zoran_driver.c b/drivers/media/video/zoran/zoran_driver.c
index 401082b853f0..67a52e844ae6 100644
--- a/drivers/media/video/zoran/zoran_driver.c
+++ b/drivers/media/video/zoran/zoran_driver.c
@@ -49,7 +49,6 @@
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <linux/pci.h>
#include <linux/vmalloc.h>
#include <linux/wait.h>
@@ -913,7 +912,7 @@ static int zoran_open(struct file *file)
dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
- lock_kernel();
+ mutex_lock(&zr->other_lock);
if (zr->user >= 2048) {
dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
@@ -963,14 +962,14 @@ static int zoran_open(struct file *file)
file->private_data = fh;
fh->zr = zr;
zoran_open_init_session(fh);
- unlock_kernel();
+ mutex_unlock(&zr->other_lock);
return 0;
fail_fh:
kfree(fh);
fail_unlock:
- unlock_kernel();
+ mutex_unlock(&zr->other_lock);
dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
ZR_DEVNAME(zr), res, zr->user);
@@ -989,7 +988,7 @@ zoran_close(struct file *file)
/* kernel locks (fs/device.c), so don't do that ourselves
* (prevents deadlocks) */
- /*mutex_lock(&zr->resource_lock);*/
+ mutex_lock(&zr->other_lock);
zoran_close_end_session(fh);
@@ -1023,6 +1022,7 @@ zoran_close(struct file *file)
encoder_call(zr, video, s_routing, 2, 0, 0);
}
}
+ mutex_unlock(&zr->other_lock);
file->private_data = NULL;
kfree(fh->overlay_mask);
@@ -3370,11 +3370,26 @@ static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
#endif
};
+/* please use zr->resource_lock consistently and kill this wrapper */
+static long zoran_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ struct zoran_fh *fh = file->private_data;
+ struct zoran *zr = fh->zr;
+ int ret;
+
+ mutex_lock(&zr->other_lock);
+ ret = video_ioctl2(file, cmd, arg);
+ mutex_unlock(&zr->other_lock);
+
+ return ret;
+}
+
static const struct v4l2_file_operations zoran_fops = {
.owner = THIS_MODULE,
.open = zoran_open,
.release = zoran_close,
- .ioctl = video_ioctl2,
+ .unlocked_ioctl = zoran_ioctl,
.read = zoran_read,
.write = zoran_write,
.mmap = zoran_mmap,
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-21 02:36:24 +0000