patch-2.4.6 linux/drivers/net/wan/comx-hw-mixcom.c
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- Lines: 76
- Date:
Wed Jun 27 17:10:55 2001
- Orig file:
v2.4.5/linux/drivers/net/wan/comx-hw-mixcom.c
- Orig date:
Mon Dec 11 13:38:29 2000
diff -u --recursive --new-file v2.4.5/linux/drivers/net/wan/comx-hw-mixcom.c linux/drivers/net/wan/comx-hw-mixcom.c
@@ -487,15 +487,18 @@
struct mixcom_privdata *hw = ch->HW_privdata;
struct proc_dir_entry *procfile = ch->procdir->subdir;
unsigned long flags;
+ int ret = -ENODEV;
- if (!dev->base_addr || !dev->irq) return -ENODEV;
+ if (!dev->base_addr || !dev->irq)
+ goto err_ret;
if(hw->channel==1) {
if(!TWIN(dev) || !(COMX_CHANNEL(TWIN(dev))->init_status &
IRQ_ALLOCATED)) {
printk(KERN_ERR "%s: channel 0 not yet initialized\n",dev->name);
- return -EAGAIN;
+ ret = -EAGAIN;
+ goto err_ret;
}
}
@@ -503,28 +506,29 @@
/* Is our hw present at all ? Not checking for channel 0 if it is already
open */
if(hw->channel!=0 || !(ch->init_status & IRQ_ALLOCATED)) {
- if (check_region(dev->base_addr, MIXCOM_IO_EXTENT)) {
- return -EAGAIN;
+ if (!request_region(dev->base_addr, MIXCOM_IO_EXTENT, dev->name)) {
+ ret = -EAGAIN;
+ goto err_ret;
}
if (mixcom_probe(dev)) {
- return -ENODEV;
+ ret = -ENODEV;
+ goto err_release_region;
}
}
- save_flags(flags); cli();
-
- if(hw->channel==1) {
- request_region(dev->base_addr, MIXCOM_IO_EXTENT, dev->name);
- }
-
if(hw->channel==0 && !(ch->init_status & IRQ_ALLOCATED)) {
if (request_irq(dev->irq, MIXCOM_interrupt, 0,
dev->name, (void *)dev)) {
printk(KERN_ERR "MIXCOM: unable to obtain irq %d\n", dev->irq);
- return -EAGAIN;
+ ret = -EAGAIN;
+ goto err_release_region;
}
+ }
+
+ save_flags(flags); cli();
+
+ if(hw->channel==0 && !(ch->init_status & IRQ_ALLOCATED)) {
ch->init_status|=IRQ_ALLOCATED;
- request_region(dev->base_addr, MIXCOM_IO_EXTENT, dev->name);
mixcom_board_on(dev);
}
@@ -560,6 +564,13 @@
}
return 0;
+
+err_restore_flags:
+ restore_flags(flags);
+err_release_region:
+ release_region(dev->base_addr, MIXCOM_IO_EXTENT);
+err_ret:
+ return ret;
}
static int MIXCOM_close(struct net_device *dev)
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