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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-12 19:01:59 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-12 19:01:59 +0200 |
| commit | 26df0766a73a859bb93dc58e747c5028557a23fd (patch) | |
| tree | 4776de567425a7fb66ca9a87228309f9c84de633 /arch/um | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg... (diff) | |
| parent | param: don't deref arg in __same_type() checks (diff) | |
| download | linux-26df0766a73a859bb93dc58e747c5028557a23fd.tar.xz linux-26df0766a73a859bb93dc58e747c5028557a23fd.zip | |
Merge branch 'params' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* 'params' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (22 commits)
param: don't deref arg in __same_type() checks
param: update drivers/acpi/debug.c to new scheme
param: use module_param in drivers/message/fusion/mptbase.c
ide: use module_param_named rather than module_param_call
param: update drivers/char/ipmi/ipmi_watchdog.c to new scheme
param: lock if_sdio's lbs_helper_name and lbs_fw_name against sysfs changes.
param: lock myri10ge_fw_name against sysfs changes.
param: simple locking for sysfs-writable charp parameters
param: remove unnecessary writable charp
param: add kerneldoc to moduleparam.h
param: locking for kernel parameters
param: make param sections const.
param: use free hook for charp (fix leak of charp parameters)
param: add a free hook to kernel_param_ops.
param: silence .init.text references from param ops
Add param ops struct for hvc_iucv driver.
nfs: update for module_param_named API change
AppArmor: update for module_param_named API change
param: use ops in struct kernel_param, rather than get and set fns directly
param: move the EXPORT_SYMBOL to after the definitions.
...
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/drivers/hostaudio_kern.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/um/drivers/hostaudio_kern.c b/arch/um/drivers/hostaudio_kern.c index 68142df76608..0c46e398cd8f 100644 --- a/arch/um/drivers/hostaudio_kern.c +++ b/arch/um/drivers/hostaudio_kern.c @@ -187,7 +187,9 @@ static int hostaudio_open(struct inode *inode, struct file *file) int ret; #ifdef DEBUG + kparam_block_sysfs_write(dsp); printk(KERN_DEBUG "hostaudio: open called (host: %s)\n", dsp); + kparam_unblock_sysfs_write(dsp); #endif state = kmalloc(sizeof(struct hostaudio_state), GFP_KERNEL); @@ -199,9 +201,11 @@ static int hostaudio_open(struct inode *inode, struct file *file) if (file->f_mode & FMODE_WRITE) w = 1; + kparam_block_sysfs_write(dsp); lock_kernel(); ret = os_open_file(dsp, of_set_rw(OPENFLAGS(), r, w), 0); unlock_kernel(); + kparam_unblock_sysfs_write(dsp); if (ret < 0) { kfree(state); @@ -258,13 +262,17 @@ static int hostmixer_open_mixdev(struct inode *inode, struct file *file) if (file->f_mode & FMODE_WRITE) w = 1; + kparam_block_sysfs_write(mixer); lock_kernel(); ret = os_open_file(mixer, of_set_rw(OPENFLAGS(), r, w), 0); unlock_kernel(); + kparam_unblock_sysfs_write(mixer); if (ret < 0) { + kparam_block_sysfs_write(dsp); printk(KERN_ERR "hostaudio_open_mixdev failed to open '%s', " "err = %d\n", dsp, -ret); + kparam_unblock_sysfs_write(dsp); kfree(state); return ret; } @@ -320,8 +328,10 @@ MODULE_LICENSE("GPL"); static int __init hostaudio_init_module(void) { + __kernel_param_lock(); printk(KERN_INFO "UML Audio Relay (host dsp = %s, host mixer = %s)\n", dsp, mixer); + __kernel_param_unlock(); module_data.dev_audio = register_sound_dsp(&hostaudio_fops, -1); if (module_data.dev_audio < 0) { |