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authorHoang-Nam Nguyen <hnguyen@de.ibm.com>2006-10-02 14:52:17 -0700
committerRoland Dreier <rolandd@cisco.com>2006-10-02 14:52:17 -0700
commit0f248d9cde673a481eb3182909b54d07e9d58f72 (patch)
tree9e6dd929c0b3ccee9be45c554a596a8370c83318 /drivers/infiniband
parent13b18c86176cab34ef30ef0a5962fcb0305f7269 (diff)
IB/ehca: Fix device registration
Move the call to ib_register_device() later, since a device should not be registered until it is completely read to be used. This fixes crashes that occur if an upper-layer driver such as IPoIB is loaded before the ehca module. Signed-off-by: Hoang-Nam Nguyen <hnguyen@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/ehca/ehca_main.c36
1 files changed, 19 insertions, 17 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c
index 2380994418a..024d511c4b5 100644
--- a/drivers/infiniband/hw/ehca/ehca_main.c
+++ b/drivers/infiniband/hw/ehca/ehca_main.c
@@ -49,7 +49,7 @@
MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Christoph Raisch <raisch@de.ibm.com>");
MODULE_DESCRIPTION("IBM eServer HCA InfiniBand Device Driver");
-MODULE_VERSION("SVNEHCA_0016");
+MODULE_VERSION("SVNEHCA_0017");
int ehca_open_aqp1 = 0;
int ehca_debug_level = 0;
@@ -239,7 +239,7 @@ init_node_guid1:
return ret;
}
-int ehca_register_device(struct ehca_shca *shca)
+int ehca_init_device(struct ehca_shca *shca)
{
int ret;
@@ -317,11 +317,6 @@ int ehca_register_device(struct ehca_shca *shca)
/* shca->ib_device.process_mad = ehca_process_mad; */
shca->ib_device.mmap = ehca_mmap;
- ret = ib_register_device(&shca->ib_device);
- if (ret)
- ehca_err(&shca->ib_device,
- "ib_register_device() failed ret=%x", ret);
-
return ret;
}
@@ -561,9 +556,9 @@ static int __devinit ehca_probe(struct ibmebus_dev *dev,
goto probe1;
}
- ret = ehca_register_device(shca);
+ ret = ehca_init_device(shca);
if (ret) {
- ehca_gen_err("Cannot register Infiniband device");
+ ehca_gen_err("Cannot init ehca device struct");
goto probe1;
}
@@ -571,7 +566,7 @@ static int __devinit ehca_probe(struct ibmebus_dev *dev,
ret = ehca_create_eq(shca, &shca->eq, EHCA_EQ, 2048);
if (ret) {
ehca_err(&shca->ib_device, "Cannot create EQ.");
- goto probe2;
+ goto probe1;
}
ret = ehca_create_eq(shca, &shca->neq, EHCA_NEQ, 513);
@@ -600,6 +595,13 @@ static int __devinit ehca_probe(struct ibmebus_dev *dev,
goto probe5;
}
+ ret = ib_register_device(&shca->ib_device);
+ if (ret) {
+ ehca_err(&shca->ib_device,
+ "ib_register_device() failed ret=%x", ret);
+ goto probe6;
+ }
+
/* create AQP1 for port 1 */
if (ehca_open_aqp1 == 1) {
shca->sport[0].port_state = IB_PORT_DOWN;
@@ -607,7 +609,7 @@ static int __devinit ehca_probe(struct ibmebus_dev *dev,
if (ret) {
ehca_err(&shca->ib_device,
"Cannot create AQP1 for port 1.");
- goto probe6;
+ goto probe7;
}
}
@@ -618,7 +620,7 @@ static int __devinit ehca_probe(struct ibmebus_dev *dev,
if (ret) {
ehca_err(&shca->ib_device,
"Cannot create AQP1 for port 2.");
- goto probe7;
+ goto probe8;
}
}
@@ -630,12 +632,15 @@ static int __devinit ehca_probe(struct ibmebus_dev *dev,
return 0;
-probe7:
+probe8:
ret = ehca_destroy_aqp1(&shca->sport[0]);
if (ret)
ehca_err(&shca->ib_device,
"Cannot destroy AQP1 for port 1. ret=%x", ret);
+probe7:
+ ib_unregister_device(&shca->ib_device);
+
probe6:
ret = ehca_dereg_internal_maxmr(shca);
if (ret)
@@ -660,9 +665,6 @@ probe3:
ehca_err(&shca->ib_device,
"Cannot destroy EQ. ret=%x", ret);
-probe2:
- ib_unregister_device(&shca->ib_device);
-
probe1:
ib_dealloc_device(&shca->ib_device);
@@ -750,7 +752,7 @@ int __init ehca_module_init(void)
int ret;
printk(KERN_INFO "eHCA Infiniband Device Driver "
- "(Rel.: SVNEHCA_0016)\n");
+ "(Rel.: SVNEHCA_0017)\n");
idr_init(&ehca_qp_idr);
idr_init(&ehca_cq_idr);
spin_lock_init(&ehca_qp_idr_lock);