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Diffstat (limited to 'sound/oss/swarm_cs4297a.c')
-rw-r--r--sound/oss/swarm_cs4297a.c41
1 files changed, 35 insertions, 6 deletions
diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
index 3136c88eacdf..b15840ad2527 100644
--- a/sound/oss/swarm_cs4297a.c
+++ b/sound/oss/swarm_cs4297a.c
@@ -68,6 +68,7 @@
#include <linux/delay.h>
#include <linux/sound.h>
#include <linux/slab.h>
+#include <linux/smp_lock.h>
#include <linux/soundcard.h>
#include <linux/ac97_codec.h>
#include <linux/pci.h>
@@ -1534,6 +1535,7 @@ static int cs4297a_open_mixdev(struct inode *inode, struct file *file)
CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()+\n"));
+ lock_kernel();
list_for_each(entry, &cs4297a_devs)
{
s = list_entry(entry, struct cs4297a_state, list);
@@ -1544,6 +1546,8 @@ static int cs4297a_open_mixdev(struct inode *inode, struct file *file)
{
CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2,
printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()- -ENODEV\n"));
+
+ unlock_kernel();
return -ENODEV;
}
VALIDATE_STATE(s);
@@ -1551,6 +1555,7 @@ static int cs4297a_open_mixdev(struct inode *inode, struct file *file)
CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()- 0\n"));
+ unlock_kernel();
return nonseekable_open(inode, file);
}
@@ -1566,11 +1571,15 @@ static int cs4297a_release_mixdev(struct inode *inode, struct file *file)
}
-static int cs4297a_ioctl_mixdev(struct inode *inode, struct file *file,
+static int cs4297a_ioctl_mixdev(struct file *file,
unsigned int cmd, unsigned long arg)
{
- return mixer_ioctl((struct cs4297a_state *) file->private_data, cmd,
+ int ret;
+ lock_kernel();
+ ret = mixer_ioctl((struct cs4297a_state *) file->private_data, cmd,
arg);
+ unlock_kernel();
+ return ret;
}
@@ -1580,7 +1589,7 @@ static int cs4297a_ioctl_mixdev(struct inode *inode, struct file *file,
static const struct file_operations cs4297a_mixer_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
- .ioctl = cs4297a_ioctl_mixdev,
+ .unlocked_ioctl = cs4297a_ioctl_mixdev,
.open = cs4297a_open_mixdev,
.release = cs4297a_release_mixdev,
};
@@ -1944,7 +1953,7 @@ static int cs4297a_mmap(struct file *file, struct vm_area_struct *vma)
}
-static int cs4297a_ioctl(struct inode *inode, struct file *file,
+static int cs4297a_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
struct cs4297a_state *s =
@@ -2337,6 +2346,16 @@ static int cs4297a_ioctl(struct inode *inode, struct file *file,
return mixer_ioctl(s, cmd, arg);
}
+static long cs4297a_unlocked_ioctl(struct file *file, u_int cmd, u_long arg)
+{
+ int ret;
+
+ lock_kernel();
+ ret = cs4297a_ioctl(file, cmd, arg);
+ unlock_kernel();
+
+ return ret;
+}
static int cs4297a_release(struct inode *inode, struct file *file)
{
@@ -2369,7 +2388,7 @@ static int cs4297a_release(struct inode *inode, struct file *file)
return 0;
}
-static int cs4297a_open(struct inode *inode, struct file *file)
+static int cs4297a_locked_open(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
struct cs4297a_state *s=NULL;
@@ -2486,6 +2505,16 @@ static int cs4297a_open(struct inode *inode, struct file *file)
return nonseekable_open(inode, file);
}
+static int cs4297a_open(struct inode *inode, struct file *file)
+{
+ int ret;
+
+ lock_kernel();
+ ret = cs4297a_open(inode, file);
+ unlock_kernel();
+
+ return ret;
+}
// ******************************************************************************************
// Wave (audio) file operations struct.
@@ -2496,7 +2525,7 @@ static const struct file_operations cs4297a_audio_fops = {
.read = cs4297a_read,
.write = cs4297a_write,
.poll = cs4297a_poll,
- .ioctl = cs4297a_ioctl,
+ .unlocked_ioctl = cs4297a_unlocked_ioctl,
.mmap = cs4297a_mmap,
.open = cs4297a_open,
.release = cs4297a_release,