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-rw-r--r--drivers/media/video/cx88/cx88-core.c15
-rw-r--r--drivers/media/video/em28xx/em28xx-video.c7
-rw-r--r--drivers/media/video/saa7134/saa7134-core.c19
-rw-r--r--drivers/media/video/videodev.c25
4 files changed, 34 insertions, 32 deletions
diff --git a/drivers/media/video/cx88/cx88-core.c b/drivers/media/video/cx88/cx88-core.c
index 194446f28c55..8d6d6a6cf785 100644
--- a/drivers/media/video/cx88/cx88-core.c
+++ b/drivers/media/video/cx88/cx88-core.c
@@ -32,6 +32,7 @@
32#include <linux/pci.h> 32#include <linux/pci.h>
33#include <linux/delay.h> 33#include <linux/delay.h>
34#include <linux/videodev2.h> 34#include <linux/videodev2.h>
35#include <linux/mutex.h>
35 36
36#include "cx88.h" 37#include "cx88.h"
37#include <media/v4l2-common.h> 38#include <media/v4l2-common.h>
@@ -75,7 +76,7 @@ MODULE_PARM_DESC(nocomb,"disable comb filter");
75 76
76static unsigned int cx88_devcount; 77static unsigned int cx88_devcount;
77static LIST_HEAD(cx88_devlist); 78static LIST_HEAD(cx88_devlist);
78static DECLARE_MUTEX(devlist); 79static DEFINE_MUTEX(devlist);
79 80
80#define NO_SYNC_LINE (-1U) 81#define NO_SYNC_LINE (-1U)
81 82
@@ -1036,7 +1037,7 @@ struct cx88_core* cx88_core_get(struct pci_dev *pci)
1036 struct list_head *item; 1037 struct list_head *item;
1037 int i; 1038 int i;
1038 1039
1039 down(&devlist); 1040 mutex_lock(&devlist);
1040 list_for_each(item,&cx88_devlist) { 1041 list_for_each(item,&cx88_devlist) {
1041 core = list_entry(item, struct cx88_core, devlist); 1042 core = list_entry(item, struct cx88_core, devlist);
1042 if (pci->bus->number != core->pci_bus) 1043 if (pci->bus->number != core->pci_bus)
@@ -1047,7 +1048,7 @@ struct cx88_core* cx88_core_get(struct pci_dev *pci)
1047 if (0 != get_ressources(core,pci)) 1048 if (0 != get_ressources(core,pci))
1048 goto fail_unlock; 1049 goto fail_unlock;
1049 atomic_inc(&core->refcount); 1050 atomic_inc(&core->refcount);
1050 up(&devlist); 1051 mutex_unlock(&devlist);
1051 return core; 1052 return core;
1052 } 1053 }
1053 core = kzalloc(sizeof(*core),GFP_KERNEL); 1054 core = kzalloc(sizeof(*core),GFP_KERNEL);
@@ -1122,13 +1123,13 @@ struct cx88_core* cx88_core_get(struct pci_dev *pci)
1122 cx88_card_setup(core); 1123 cx88_card_setup(core);
1123 cx88_ir_init(core,pci); 1124 cx88_ir_init(core,pci);
1124 1125
1125 up(&devlist); 1126 mutex_unlock(&devlist);
1126 return core; 1127 return core;
1127 1128
1128fail_free: 1129fail_free:
1129 kfree(core); 1130 kfree(core);
1130fail_unlock: 1131fail_unlock:
1131 up(&devlist); 1132 mutex_unlock(&devlist);
1132 return NULL; 1133 return NULL;
1133} 1134}
1134 1135
@@ -1140,14 +1141,14 @@ void cx88_core_put(struct cx88_core *core, struct pci_dev *pci)
1140 if (!atomic_dec_and_test(&core->refcount)) 1141 if (!atomic_dec_and_test(&core->refcount))
1141 return; 1142 return;
1142 1143
1143 down(&devlist); 1144 mutex_lock(&devlist);
1144 cx88_ir_fini(core); 1145 cx88_ir_fini(core);
1145 if (0 == core->i2c_rc) 1146 if (0 == core->i2c_rc)
1146 i2c_bit_del_bus(&core->i2c_adap); 1147 i2c_bit_del_bus(&core->i2c_adap);
1147 list_del(&core->devlist); 1148 list_del(&core->devlist);
1148 iounmap(core->lmmio); 1149 iounmap(core->lmmio);
1149 cx88_devcount--; 1150 cx88_devcount--;
1150 up(&devlist); 1151 mutex_unlock(&devlist);
1151 kfree(core); 1152 kfree(core);
1152} 1153}
1153 1154
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index 3323dffe26a4..eea304f75176 100644
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -29,6 +29,7 @@
29#include <linux/i2c.h> 29#include <linux/i2c.h>
30#include <linux/version.h> 30#include <linux/version.h>
31#include <linux/video_decoder.h> 31#include <linux/video_decoder.h>
32#include <linux/mutex.h>
32 33
33#include "em28xx.h" 34#include "em28xx.h"
34#include <media/tuner.h> 35#include <media/tuner.h>
@@ -191,7 +192,7 @@ static struct v4l2_queryctrl saa711x_qctrl[] = {
191 192
192static struct usb_driver em28xx_usb_driver; 193static struct usb_driver em28xx_usb_driver;
193 194
194static DECLARE_MUTEX(em28xx_sysfs_lock); 195static DEFINE_MUTEX(em28xx_sysfs_lock);
195static DECLARE_RWSEM(em28xx_disconnect); 196static DECLARE_RWSEM(em28xx_disconnect);
196 197
197/********************* v4l2 interface ******************************************/ 198/********************* v4l2 interface ******************************************/
@@ -394,7 +395,7 @@ static int em28xx_v4l2_open(struct inode *inode, struct file *filp)
394*/ 395*/
395static void em28xx_release_resources(struct em28xx *dev) 396static void em28xx_release_resources(struct em28xx *dev)
396{ 397{
397 down(&em28xx_sysfs_lock); 398 mutex_lock(&em28xx_sysfs_lock);
398 399
399 em28xx_info("V4L2 device /dev/video%d deregistered\n", 400 em28xx_info("V4L2 device /dev/video%d deregistered\n",
400 dev->vdev->minor); 401 dev->vdev->minor);
@@ -403,7 +404,7 @@ static void em28xx_release_resources(struct em28xx *dev)
403/* video_unregister_device(dev->vbi_dev); */ 404/* video_unregister_device(dev->vbi_dev); */
404 em28xx_i2c_unregister(dev); 405 em28xx_i2c_unregister(dev);
405 usb_put_dev(dev->udev); 406 usb_put_dev(dev->udev);
406 up(&em28xx_sysfs_lock); 407 mutex_unlock(&em28xx_sysfs_lock);
407} 408}
408 409
409/* 410/*
diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c
index 3dd42efe3699..028904bd94a2 100644
--- a/drivers/media/video/saa7134/saa7134-core.c
+++ b/drivers/media/video/saa7134/saa7134-core.c
@@ -31,6 +31,7 @@
31#include <linux/sound.h> 31#include <linux/sound.h>
32#include <linux/interrupt.h> 32#include <linux/interrupt.h>
33#include <linux/delay.h> 33#include <linux/delay.h>
34#include <linux/mutex.h>
34 35
35#include "saa7134-reg.h" 36#include "saa7134-reg.h"
36#include "saa7134.h" 37#include "saa7134.h"
@@ -84,7 +85,7 @@ MODULE_PARM_DESC(radio_nr, "radio device number");
84MODULE_PARM_DESC(tuner, "tuner type"); 85MODULE_PARM_DESC(tuner, "tuner type");
85MODULE_PARM_DESC(card, "card type"); 86MODULE_PARM_DESC(card, "card type");
86 87
87static DECLARE_MUTEX(devlist_lock); 88static DEFINE_MUTEX(devlist_lock);
88LIST_HEAD(saa7134_devlist); 89LIST_HEAD(saa7134_devlist);
89static LIST_HEAD(mops_list); 90static LIST_HEAD(mops_list);
90static unsigned int saa7134_devcount; 91static unsigned int saa7134_devcount;
@@ -969,13 +970,13 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev,
969 pci_set_drvdata(pci_dev,dev); 970 pci_set_drvdata(pci_dev,dev);
970 saa7134_devcount++; 971 saa7134_devcount++;
971 972
972 down(&devlist_lock); 973 mutex_lock(&devlist_lock);
973 list_for_each(item,&mops_list) { 974 list_for_each(item,&mops_list) {
974 mops = list_entry(item, struct saa7134_mpeg_ops, next); 975 mops = list_entry(item, struct saa7134_mpeg_ops, next);
975 mpeg_ops_attach(mops, dev); 976 mpeg_ops_attach(mops, dev);
976 } 977 }
977 list_add_tail(&dev->devlist,&saa7134_devlist); 978 list_add_tail(&dev->devlist,&saa7134_devlist);
978 up(&devlist_lock); 979 mutex_unlock(&devlist_lock);
979 980
980 /* check for signal */ 981 /* check for signal */
981 saa7134_irq_video_intl(dev); 982 saa7134_irq_video_intl(dev);
@@ -1031,13 +1032,13 @@ static void __devexit saa7134_finidev(struct pci_dev *pci_dev)
1031 saa7134_hwfini(dev); 1032 saa7134_hwfini(dev);
1032 1033
1033 /* unregister */ 1034 /* unregister */
1034 down(&devlist_lock); 1035 mutex_lock(&devlist_lock);
1035 list_del(&dev->devlist); 1036 list_del(&dev->devlist);
1036 list_for_each(item,&mops_list) { 1037 list_for_each(item,&mops_list) {
1037 mops = list_entry(item, struct saa7134_mpeg_ops, next); 1038 mops = list_entry(item, struct saa7134_mpeg_ops, next);
1038 mpeg_ops_detach(mops, dev); 1039 mpeg_ops_detach(mops, dev);
1039 } 1040 }
1040 up(&devlist_lock); 1041 mutex_unlock(&devlist_lock);
1041 saa7134_devcount--; 1042 saa7134_devcount--;
1042 1043
1043 saa7134_i2c_unregister(dev); 1044 saa7134_i2c_unregister(dev);
@@ -1071,13 +1072,13 @@ int saa7134_ts_register(struct saa7134_mpeg_ops *ops)
1071 struct list_head *item; 1072 struct list_head *item;
1072 struct saa7134_dev *dev; 1073 struct saa7134_dev *dev;
1073 1074
1074 down(&devlist_lock); 1075 mutex_lock(&devlist_lock);
1075 list_for_each(item,&saa7134_devlist) { 1076 list_for_each(item,&saa7134_devlist) {
1076 dev = list_entry(item, struct saa7134_dev, devlist); 1077 dev = list_entry(item, struct saa7134_dev, devlist);
1077 mpeg_ops_attach(ops, dev); 1078 mpeg_ops_attach(ops, dev);
1078 } 1079 }
1079 list_add_tail(&ops->next,&mops_list); 1080 list_add_tail(&ops->next,&mops_list);
1080 up(&devlist_lock); 1081 mutex_unlock(&devlist_lock);
1081 return 0; 1082 return 0;
1082} 1083}
1083 1084
@@ -1086,13 +1087,13 @@ void saa7134_ts_unregister(struct saa7134_mpeg_ops *ops)
1086 struct list_head *item; 1087 struct list_head *item;
1087 struct saa7134_dev *dev; 1088 struct saa7134_dev *dev;
1088 1089
1089 down(&devlist_lock); 1090 mutex_lock(&devlist_lock);
1090 list_del(&ops->next); 1091 list_del(&ops->next);
1091 list_for_each(item,&saa7134_devlist) { 1092 list_for_each(item,&saa7134_devlist) {
1092 dev = list_entry(item, struct saa7134_dev, devlist); 1093 dev = list_entry(item, struct saa7134_dev, devlist);
1093 mpeg_ops_detach(ops, dev); 1094 mpeg_ops_detach(ops, dev);
1094 } 1095 }
1095 up(&devlist_lock); 1096 mutex_unlock(&devlist_lock);
1096} 1097}
1097 1098
1098EXPORT_SYMBOL(saa7134_ts_register); 1099EXPORT_SYMBOL(saa7134_ts_register);
diff --git a/drivers/media/video/videodev.c b/drivers/media/video/videodev.c
index d5be25987142..078880e4c8c0 100644
--- a/drivers/media/video/videodev.c
+++ b/drivers/media/video/videodev.c
@@ -29,7 +29,6 @@
29#include <linux/devfs_fs_kernel.h> 29#include <linux/devfs_fs_kernel.h>
30#include <asm/uaccess.h> 30#include <asm/uaccess.h>
31#include <asm/system.h> 31#include <asm/system.h>
32#include <asm/semaphore.h>
33 32
34#include <linux/videodev.h> 33#include <linux/videodev.h>
35 34
@@ -83,7 +82,7 @@ static struct class video_class = {
83 */ 82 */
84 83
85static struct video_device *video_device[VIDEO_NUM_DEVICES]; 84static struct video_device *video_device[VIDEO_NUM_DEVICES];
86static DECLARE_MUTEX(videodev_lock); 85static DEFINE_MUTEX(videodev_lock);
87 86
88struct video_device* video_devdata(struct file *file) 87struct video_device* video_devdata(struct file *file)
89{ 88{
@@ -102,15 +101,15 @@ static int video_open(struct inode *inode, struct file *file)
102 101
103 if(minor>=VIDEO_NUM_DEVICES) 102 if(minor>=VIDEO_NUM_DEVICES)
104 return -ENODEV; 103 return -ENODEV;
105 down(&videodev_lock); 104 mutex_lock(&videodev_lock);
106 vfl=video_device[minor]; 105 vfl=video_device[minor];
107 if(vfl==NULL) { 106 if(vfl==NULL) {
108 up(&videodev_lock); 107 mutex_unlock(&videodev_lock);
109 request_module("char-major-%d-%d", VIDEO_MAJOR, minor); 108 request_module("char-major-%d-%d", VIDEO_MAJOR, minor);
110 down(&videodev_lock); 109 mutex_lock(&videodev_lock);
111 vfl=video_device[minor]; 110 vfl=video_device[minor];
112 if (vfl==NULL) { 111 if (vfl==NULL) {
113 up(&videodev_lock); 112 mutex_unlock(&videodev_lock);
114 return -ENODEV; 113 return -ENODEV;
115 } 114 }
116 } 115 }
@@ -123,7 +122,7 @@ static int video_open(struct inode *inode, struct file *file)
123 file->f_op = fops_get(old_fops); 122 file->f_op = fops_get(old_fops);
124 } 123 }
125 fops_put(old_fops); 124 fops_put(old_fops);
126 up(&videodev_lock); 125 mutex_unlock(&videodev_lock);
127 return err; 126 return err;
128} 127}
129 128
@@ -304,12 +303,12 @@ int video_register_device(struct video_device *vfd, int type, int nr)
304 } 303 }
305 304
306 /* pick a minor number */ 305 /* pick a minor number */
307 down(&videodev_lock); 306 mutex_lock(&videodev_lock);
308 if (nr >= 0 && nr < end-base) { 307 if (nr >= 0 && nr < end-base) {
309 /* use the one the driver asked for */ 308 /* use the one the driver asked for */
310 i = base+nr; 309 i = base+nr;
311 if (NULL != video_device[i]) { 310 if (NULL != video_device[i]) {
312 up(&videodev_lock); 311 mutex_unlock(&videodev_lock);
313 return -ENFILE; 312 return -ENFILE;
314 } 313 }
315 } else { 314 } else {
@@ -318,13 +317,13 @@ int video_register_device(struct video_device *vfd, int type, int nr)
318 if (NULL == video_device[i]) 317 if (NULL == video_device[i])
319 break; 318 break;
320 if (i == end) { 319 if (i == end) {
321 up(&videodev_lock); 320 mutex_unlock(&videodev_lock);
322 return -ENFILE; 321 return -ENFILE;
323 } 322 }
324 } 323 }
325 video_device[i]=vfd; 324 video_device[i]=vfd;
326 vfd->minor=i; 325 vfd->minor=i;
327 up(&videodev_lock); 326 mutex_unlock(&videodev_lock);
328 327
329 sprintf(vfd->devfs_name, "v4l/%s%d", name_base, i - base); 328 sprintf(vfd->devfs_name, "v4l/%s%d", name_base, i - base);
330 devfs_mk_cdev(MKDEV(VIDEO_MAJOR, vfd->minor), 329 devfs_mk_cdev(MKDEV(VIDEO_MAJOR, vfd->minor),
@@ -362,14 +361,14 @@ int video_register_device(struct video_device *vfd, int type, int nr)
362 361
363void video_unregister_device(struct video_device *vfd) 362void video_unregister_device(struct video_device *vfd)
364{ 363{
365 down(&videodev_lock); 364 mutex_lock(&videodev_lock);
366 if(video_device[vfd->minor]!=vfd) 365 if(video_device[vfd->minor]!=vfd)
367 panic("videodev: bad unregister"); 366 panic("videodev: bad unregister");
368 367
369 devfs_remove(vfd->devfs_name); 368 devfs_remove(vfd->devfs_name);
370 video_device[vfd->minor]=NULL; 369 video_device[vfd->minor]=NULL;
371 class_device_unregister(&vfd->class_dev); 370 class_device_unregister(&vfd->class_dev);
372 up(&videodev_lock); 371 mutex_unlock(&videodev_lock);
373} 372}
374 373
375 374