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authorDavid S. Miller <davem@davemloft.net>2008-09-25 13:06:59 -0700
committerDavid S. Miller <davem@davemloft.net>2008-09-25 13:06:59 -0700
commitef40a685311bef053dedd833a72dffaf25669dda (patch)
treeac4bc8a07a0e896c9c09438ccabf4fcd627bf5a7 /drivers/net/ehea
parent630b25cdf4e3f8c0a11eb04fc8436cc36653cd58 (diff)
downloadop-kernel-dev-ef40a685311bef053dedd833a72dffaf25669dda.zip
op-kernel-dev-ef40a685311bef053dedd833a72dffaf25669dda.tar.gz
Revert "ehea: fix mutex and spinlock use"
This reverts commit 2eefbd63d0c85daa1317636474c226e236beba81. On request by driver author and Jeff Garzik. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ehea')
-rw-r--r--drivers/net/ehea/ehea_main.c26
1 files changed, 22 insertions, 4 deletions
diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index c765ec6..b70c531 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -219,11 +219,9 @@ static void ehea_update_firmware_handles(void)
}
out_update:
- mutex_lock(&ehea_fw_handles.lock);
kfree(ehea_fw_handles.arr);
ehea_fw_handles.arr = arr;
ehea_fw_handles.num_entries = i;
- mutex_unlock(&ehea_fw_handles.lock);
}
static void ehea_update_bcmc_registrations(void)
@@ -295,11 +293,9 @@ static void ehea_update_bcmc_registrations(void)
}
out_update:
- spin_lock(&ehea_bcmc_regs.lock);
kfree(ehea_bcmc_regs.arr);
ehea_bcmc_regs.arr = arr;
ehea_bcmc_regs.num_entries = i;
- spin_unlock(&ehea_bcmc_regs.lock);
}
static struct net_device_stats *ehea_get_stats(struct net_device *dev)
@@ -1774,6 +1770,8 @@ static int ehea_set_mac_addr(struct net_device *dev, void *sa)
memcpy(dev->dev_addr, mac_addr->sa_data, dev->addr_len);
+ spin_lock(&ehea_bcmc_regs.lock);
+
/* Deregister old MAC in pHYP */
if (port->state == EHEA_PORT_UP) {
ret = ehea_broadcast_reg_helper(port, H_DEREG_BCMC);
@@ -1794,6 +1792,7 @@ static int ehea_set_mac_addr(struct net_device *dev, void *sa)
out_upregs:
ehea_update_bcmc_registrations();
+ spin_unlock(&ehea_bcmc_regs.lock);
out_free:
kfree(cb0);
out:
@@ -1955,6 +1954,8 @@ static void ehea_set_multicast_list(struct net_device *dev)
}
ehea_promiscuous(dev, 0);
+ spin_lock(&ehea_bcmc_regs.lock);
+
if (dev->flags & IFF_ALLMULTI) {
ehea_allmulti(dev, 1);
goto out;
@@ -1984,6 +1985,7 @@ static void ehea_set_multicast_list(struct net_device *dev)
}
out:
ehea_update_bcmc_registrations();
+ spin_unlock(&ehea_bcmc_regs.lock);
return;
}
@@ -2464,6 +2466,8 @@ static int ehea_up(struct net_device *dev)
if (port->state == EHEA_PORT_UP)
return 0;
+ mutex_lock(&ehea_fw_handles.lock);
+
ret = ehea_port_res_setup(port, port->num_def_qps,
port->num_add_tx_qps);
if (ret) {
@@ -2500,6 +2504,8 @@ static int ehea_up(struct net_device *dev)
}
}
+ spin_lock(&ehea_bcmc_regs.lock);
+
ret = ehea_broadcast_reg_helper(port, H_REG_BCMC);
if (ret) {
ret = -EIO;
@@ -2521,8 +2527,10 @@ out:
ehea_info("Failed starting %s. ret=%i", dev->name, ret);
ehea_update_bcmc_registrations();
+ spin_unlock(&ehea_bcmc_regs.lock);
ehea_update_firmware_handles();
+ mutex_unlock(&ehea_fw_handles.lock);
return ret;
}
@@ -2572,6 +2580,9 @@ static int ehea_down(struct net_device *dev)
if (port->state == EHEA_PORT_DOWN)
return 0;
+ mutex_lock(&ehea_fw_handles.lock);
+
+ spin_lock(&ehea_bcmc_regs.lock);
ehea_drop_multicast_list(dev);
ehea_broadcast_reg_helper(port, H_DEREG_BCMC);
@@ -2580,6 +2591,7 @@ static int ehea_down(struct net_device *dev)
port->state = EHEA_PORT_DOWN;
ehea_update_bcmc_registrations();
+ spin_unlock(&ehea_bcmc_regs.lock);
ret = ehea_clean_all_portres(port);
if (ret)
@@ -2587,6 +2599,7 @@ static int ehea_down(struct net_device *dev)
dev->name, ret);
ehea_update_firmware_handles();
+ mutex_unlock(&ehea_fw_handles.lock);
return ret;
}
@@ -3365,6 +3378,7 @@ static int __devinit ehea_probe_adapter(struct of_device *dev,
ehea_error("Invalid ibmebus device probed");
return -EINVAL;
}
+ mutex_lock(&ehea_fw_handles.lock);
adapter = kzalloc(sizeof(*adapter), GFP_KERNEL);
if (!adapter) {
@@ -3448,6 +3462,7 @@ out_free_ad:
out:
ehea_update_firmware_handles();
+ mutex_unlock(&ehea_fw_handles.lock);
return ret;
}
@@ -3466,6 +3481,8 @@ static int __devexit ehea_remove(struct of_device *dev)
flush_scheduled_work();
+ mutex_lock(&ehea_fw_handles.lock);
+
ibmebus_free_irq(adapter->neq->attr.ist1, adapter);
tasklet_kill(&adapter->neq_tasklet);
@@ -3475,6 +3492,7 @@ static int __devexit ehea_remove(struct of_device *dev)
kfree(adapter);
ehea_update_firmware_handles();
+ mutex_unlock(&ehea_fw_handles.lock);
return 0;
}
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