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-rw-r--r--arch/um/drivers/chan_kern.c8
-rw-r--r--arch/um/drivers/hostaudio_kern.c16
-rw-r--r--arch/um/drivers/net_kern.c10
-rw-r--r--arch/um/drivers/ubd_kern.c7
4 files changed, 28 insertions, 13 deletions
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index 6e51424745ab..25e1965df7ce 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -210,9 +210,9 @@ void free_irqs(void)
list_for_each(ele, &list) {
chan = list_entry(ele, struct chan, free_list);
- if (chan->input)
+ if (chan->input && chan->enabled)
free_irq(chan->line->driver->read_irq, chan);
- if (chan->output)
+ if (chan->output && chan->enabled)
free_irq(chan->line->driver->write_irq, chan);
chan->enabled = 0;
}
@@ -231,9 +231,9 @@ static void close_one_chan(struct chan *chan, int delay_free_irq)
spin_unlock_irqrestore(&irqs_to_free_lock, flags);
}
else {
- if (chan->input)
+ if (chan->input && chan->enabled)
free_irq(chan->line->driver->read_irq, chan);
- if (chan->output)
+ if (chan->output && chan->enabled)
free_irq(chan->line->driver->write_irq, chan);
chan->enabled = 0;
}
diff --git a/arch/um/drivers/hostaudio_kern.c b/arch/um/drivers/hostaudio_kern.c
index ae42695c3597..0c46e398cd8f 100644
--- a/arch/um/drivers/hostaudio_kern.c
+++ b/arch/um/drivers/hostaudio_kern.c
@@ -8,6 +8,7 @@
#include "linux/slab.h"
#include "linux/sound.h"
#include "linux/soundcard.h"
+#include "linux/smp_lock.h"
#include "asm/uaccess.h"
#include "init.h"
#include "os.h"
@@ -186,7 +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);
@@ -198,7 +201,12 @@ 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);
return ret;
@@ -254,11 +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;
}
@@ -314,8 +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) {
diff --git a/arch/um/drivers/net_kern.c b/arch/um/drivers/net_kern.c
index f05372694233..2ab233ba32c1 100644
--- a/arch/um/drivers/net_kern.c
+++ b/arch/um/drivers/net_kern.c
@@ -25,11 +25,6 @@
#include "net_kern.h"
#include "net_user.h"
-static inline void set_ether_mac(struct net_device *dev, unsigned char *addr)
-{
- memcpy(dev->dev_addr, addr, ETH_ALEN);
-}
-
#define DRIVER_NAME "uml-netdev"
static DEFINE_SPINLOCK(opened_lock);
@@ -266,7 +261,7 @@ static int uml_net_set_mac(struct net_device *dev, void *addr)
struct sockaddr *hwaddr = addr;
spin_lock_irq(&lp->lock);
- set_ether_mac(dev, hwaddr->sa_data);
+ eth_mac_addr(dev, hwaddr->sa_data);
spin_unlock_irq(&lp->lock);
return 0;
@@ -380,7 +375,6 @@ static const struct net_device_ops uml_netdev_ops = {
.ndo_tx_timeout = uml_net_tx_timeout,
.ndo_set_mac_address = uml_net_set_mac,
.ndo_change_mtu = uml_net_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};
@@ -478,7 +472,7 @@ static void eth_configure(int n, void *init, char *mac,
((*transport->user->init)(&lp->user, dev) != 0))
goto out_unregister;
- set_ether_mac(dev, device->mac);
+ eth_mac_addr(dev, device->mac);
dev->mtu = transport->user->mtu;
dev->netdev_ops = &uml_netdev_ops;
dev->ethtool_ops = &uml_net_ethtool_ops;
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c
index da992a3ad6b7..1bcd208c459f 100644
--- a/arch/um/drivers/ubd_kern.c
+++ b/arch/um/drivers/ubd_kern.c
@@ -33,6 +33,7 @@
#include "linux/mm.h"
#include "linux/slab.h"
#include "linux/vmalloc.h"
+#include "linux/smp_lock.h"
#include "linux/blkpg.h"
#include "linux/genhd.h"
#include "linux/spinlock.h"
@@ -1098,6 +1099,7 @@ static int ubd_open(struct block_device *bdev, fmode_t mode)
struct ubd *ubd_dev = disk->private_data;
int err = 0;
+ lock_kernel();
if(ubd_dev->count == 0){
err = ubd_open_dev(ubd_dev);
if(err){
@@ -1115,7 +1117,8 @@ static int ubd_open(struct block_device *bdev, fmode_t mode)
if(--ubd_dev->count == 0) ubd_close_dev(ubd_dev);
err = -EROFS;
}*/
- out:
+out:
+ unlock_kernel();
return err;
}
@@ -1123,8 +1126,10 @@ static int ubd_release(struct gendisk *disk, fmode_t mode)
{
struct ubd *ubd_dev = disk->private_data;
+ lock_kernel();
if(--ubd_dev->count == 0)
ubd_close_dev(ubd_dev);
+ unlock_kernel();
return 0;
}
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-09 08:09:47 +0300