From 7df7cf0676060d778486359676734447347e1caf Mon Sep 17 00:00:00 2001 From: Shannon Nelson Date: Thu, 18 Oct 2007 03:07:12 -0700 Subject: [PATCH] I/OAT: cleanup pci issues Reorder the pci release actions Letting go of the resources in the right order helps get rid of occasional kernel complaints. Fix the pci_driver object name [Randy Dunlap] Rename the struct pci_driver data so that false section mismatch warnings won't be produced. Cc: Randy Dunlap Signed-off-by: Shannon Nelson Cc: Dan Williams Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/dma/ioat.c | 23 ++++++----------------- drivers/dma/ioat_dma.c | 5 ++++- 2 files changed, 10 insertions(+), 18 deletions(-) diff --git a/drivers/dma/ioat.c b/drivers/dma/ioat.c index f7276bf2fe7e..54fdeb7c4945 100644 --- a/drivers/dma/ioat.c +++ b/drivers/dma/ioat.c @@ -55,9 +55,7 @@ struct ioat_device { static int __devinit ioat_probe(struct pci_dev *pdev, const struct pci_device_id *id); -#ifdef IOAT_DMA_REMOVE static void __devexit ioat_remove(struct pci_dev *pdev); -#endif static int ioat_dca_enabled = 1; module_param(ioat_dca_enabled, int, 0644); @@ -100,14 +98,12 @@ static void ioat_shutdown_functionality(struct pci_dev *pdev) } -static struct pci_driver ioat_pci_drv = { +static struct pci_driver ioat_pci_driver = { .name = "ioatdma", .id_table = ioat_pci_tbl, .probe = ioat_probe, .shutdown = ioat_shutdown_functionality, -#ifdef IOAT_DMA_REMOVE .remove = __devexit_p(ioat_remove), -#endif }; static int __devinit ioat_probe(struct pci_dev *pdev, @@ -122,7 +118,7 @@ static int __devinit ioat_probe(struct pci_dev *pdev, if (err) goto err_enable_device; - err = pci_request_regions(pdev, ioat_pci_drv.name); + err = pci_request_regions(pdev, ioat_pci_driver.name); if (err) goto err_request_regions; @@ -176,13 +172,11 @@ err_enable_device: return err; } -#ifdef IOAT_DMA_REMOVE /* * It is unsafe to remove this module: if removed while a requested * dma is outstanding, esp. from tcp, it is possible to hang while - * waiting for something that will never finish, thus hanging at - * least one cpu. However, if you're feeling lucky and need to do - * some testing, this usually works just fine. + * waiting for something that will never finish. However, if you're + * feeling lucky, this usually works just fine. */ static void __devexit ioat_remove(struct pci_dev *pdev) { @@ -191,21 +185,16 @@ static void __devexit ioat_remove(struct pci_dev *pdev) ioat_shutdown_functionality(pdev); kfree(device); - - iounmap(device->iobase); - pci_release_regions(pdev); - pci_disable_device(pdev); } -#endif static int __init ioat_init_module(void) { - return pci_register_driver(&ioat_pci_drv); + return pci_register_driver(&ioat_pci_driver); } module_init(ioat_init_module); static void __exit ioat_exit_module(void) { - pci_unregister_driver(&ioat_pci_drv); + pci_unregister_driver(&ioat_pci_driver); } module_exit(ioat_exit_module); diff --git a/drivers/dma/ioat_dma.c b/drivers/dma/ioat_dma.c index 66c5bb53211b..59d4344db005 100644 --- a/drivers/dma/ioat_dma.c +++ b/drivers/dma/ioat_dma.c @@ -931,7 +931,6 @@ err_completion_pool: err_dma_pool: kfree(device); err_kzalloc: - iounmap(iobase); dev_err(&device->pdev->dev, "ioatdma: Intel(R) I/OAT DMA Engine initialization failed\n"); return NULL; @@ -949,6 +948,10 @@ void ioat_dma_remove(struct ioatdma_device *device) pci_pool_destroy(device->dma_pool); pci_pool_destroy(device->completion_pool); + iounmap(device->reg_base); + pci_release_regions(device->pdev); + pci_disable_device(device->pdev); + list_for_each_entry_safe(chan, _chan, &device->common.channels, device_node) { ioat_chan = to_ioat_chan(chan); -- 2.20.1