From 0f248d9cde673a481eb3182909b54d07e9d58f72 Mon Sep 17 00:00:00 2001 From: Hoang-Nam Nguyen Date: Mon, 2 Oct 2006 14:52:17 -0700 Subject: [PATCH] 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 Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ehca/ehca_main.c | 36 ++++++++++++++------------ 1 file changed, 19 insertions(+), 17 deletions(-) diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c index 2380994418..024d511c4b 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 "); 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); -- 2.39.5