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path: root/drivers/media/video/zoran_card.c
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Diffstat (limited to 'drivers/media/video/zoran_card.c')
-rw-r--r--drivers/media/video/zoran_card.c49
1 files changed, 23 insertions, 26 deletions
diff --git a/drivers/media/video/zoran_card.c b/drivers/media/video/zoran_card.c
index 246e67cd8b51..b22dbb6d18f6 100644
--- a/drivers/media/video/zoran_card.c
+++ b/drivers/media/video/zoran_card.c
@@ -47,6 +47,7 @@
#include <linux/interrupt.h>
#include <linux/video_decoder.h>
#include <linux/video_encoder.h>
+#include <linux/mutex.h>
#include <asm/io.h>
@@ -673,7 +674,7 @@ zoran_i2c_client_register (struct i2c_client *client)
KERN_DEBUG "%s: i2c_client_register() - driver id = %d\n",
ZR_DEVNAME(zr), client->driver->id);
- down(&zr->resource_lock);
+ mutex_lock(&zr->resource_lock);
if (zr->user > 0) {
/* we're already busy, so we keep a reference to
@@ -694,7 +695,7 @@ zoran_i2c_client_register (struct i2c_client *client)
}
clientreg_unlock_and_return:
- up(&zr->resource_lock);
+ mutex_unlock(&zr->resource_lock);
return res;
}
@@ -707,7 +708,7 @@ zoran_i2c_client_unregister (struct i2c_client *client)
dprintk(2, KERN_DEBUG "%s: i2c_client_unregister()\n", ZR_DEVNAME(zr));
- down(&zr->resource_lock);
+ mutex_lock(&zr->resource_lock);
if (zr->user > 0) {
res = -EBUSY;
@@ -722,7 +723,7 @@ zoran_i2c_client_unregister (struct i2c_client *client)
snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "MJPEG[%d]", zr->id);
}
clientunreg_unlock_and_return:
- up(&zr->resource_lock);
+ mutex_unlock(&zr->resource_lock);
return res;
}
@@ -995,10 +996,7 @@ test_interrupts (struct zoran *zr)
static int __devinit
zr36057_init (struct zoran *zr)
{
- u32 *mem;
- void *vdev;
- unsigned mem_needed;
- int j;
+ int j, err;
int two = 2;
int zero = 0;
@@ -1049,19 +1047,16 @@ zr36057_init (struct zoran *zr)
/* allocate memory *before* doing anything to the hardware
* in case allocation fails */
- mem_needed = BUZ_NUM_STAT_COM * 4;
- mem = kzalloc(mem_needed, GFP_KERNEL);
- vdev = (void *) kmalloc(sizeof(struct video_device), GFP_KERNEL);
- if (!mem || !vdev) {
+ zr->stat_com = kzalloc(BUZ_NUM_STAT_COM * 4, GFP_KERNEL);
+ zr->video_dev = kmalloc(sizeof(struct video_device), GFP_KERNEL);
+ if (!zr->stat_com || !zr->video_dev) {
dprintk(1,
KERN_ERR
"%s: zr36057_init() - kmalloc (STAT_COM) failed\n",
ZR_DEVNAME(zr));
- kfree(vdev);
- kfree(mem);
- return -ENOMEM;
+ err = -ENOMEM;
+ goto exit_free;
}
- zr->stat_com = mem;
for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
zr->stat_com[j] = 1; /* mark as unavailable to zr36057 */
}
@@ -1069,16 +1064,11 @@ zr36057_init (struct zoran *zr)
/*
* Now add the template and register the device unit.
*/
- zr->video_dev = vdev;
memcpy(zr->video_dev, &zoran_template, sizeof(zoran_template));
strcpy(zr->video_dev->name, ZR_DEVNAME(zr));
- if (video_register_device(zr->video_dev, VFL_TYPE_GRABBER,
- video_nr) < 0) {
- zoran_unregister_i2c(zr);
- kfree((void *) zr->stat_com);
- kfree(vdev);
- return -1;
- }
+ err = video_register_device(zr->video_dev, VFL_TYPE_GRABBER, video_nr);
+ if (err < 0)
+ goto exit_unregister;
zoran_init_hardware(zr);
if (*zr_debug > 2)
@@ -1092,6 +1082,13 @@ zr36057_init (struct zoran *zr)
zr->zoran_proc = NULL;
zr->initialized = 1;
return 0;
+
+exit_unregister:
+ zoran_unregister_i2c(zr);
+exit_free:
+ kfree(zr->stat_com);
+ kfree(zr->video_dev);
+ return err;
}
static void
@@ -1121,7 +1118,7 @@ zoran_release (struct zoran *zr)
btwrite(0, ZR36057_SPGPPCR);
free_irq(zr->pci_dev->irq, zr);
/* unmap and free memory */
- kfree((void *) zr->stat_com);
+ kfree(zr->stat_com);
zoran_proc_cleanup(zr);
iounmap(zr->zr36057_mem);
pci_disable_device(zr->pci_dev);
@@ -1206,7 +1203,7 @@ find_zr36057 (void)
zr->id = zoran_num;
snprintf(ZR_DEVNAME(zr), sizeof(ZR_DEVNAME(zr)), "MJPEG[%u]", zr->id);
spin_lock_init(&zr->spinlock);
- init_MUTEX(&zr->resource_lock);
+ mutex_init(&zr->resource_lock);
if (pci_enable_device(dev))
continue;
zr->zr36057_adr = pci_resource_start(zr->pci_dev, 0);