diff options
Diffstat (limited to 'sound/oss/swarm_cs4297a.c')
| -rw-r--r-- | sound/oss/swarm_cs4297a.c | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c index 3136c88eacd..b15840ad252 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, |