From 883624a08cb4144343e7362d9fff0e2c69613ebf Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 24 Dec 2010 16:14:20 +0100 Subject: [PATCH] ioc4: use static work_struct for ioc4_load_modules() There is no reason to dynamically allocate work_struct for ioc4_load_modules(). It makes the code more complex and makes it impossible to flush the work directly. Use static work ioc4_load_modules_work instead and flush it directly on exit. This removes the use of flush_scheduled_work() which is being deprecated. Signed-off-by: Tejun Heo Cc: Brent Casavant --- drivers/misc/ioc4.c | 29 +++++++++-------------------- 1 file changed, 9 insertions(+), 20 deletions(-) diff --git a/drivers/misc/ioc4.c b/drivers/misc/ioc4.c index 1932066..668d41e 100644 --- a/drivers/misc/ioc4.c +++ b/drivers/misc/ioc4.c @@ -273,13 +273,11 @@ ioc4_variant(struct ioc4_driver_data *idd) static void __devinit ioc4_load_modules(struct work_struct *work) { - /* arg just has to be freed */ - request_module("sgiioc4"); - - kfree(work); } +static DECLARE_WORK(ioc4_load_modules_work, ioc4_load_modules); + /* Adds a new instance of an IOC4 card */ static int __devinit ioc4_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) @@ -396,21 +394,12 @@ ioc4_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) * PCI device. */ if (idd->idd_variant != IOC4_VARIANT_PCI_RT) { - struct work_struct *work; - work = kzalloc(sizeof(struct work_struct), GFP_KERNEL); - if (!work) { - printk(KERN_WARNING - "%s: IOC4 unable to allocate memory for " - "load of sub-modules.\n", __func__); - } else { - /* Request the module from a work procedure as the - * modprobe goes out to a userland helper and that - * will hang if done directly from ioc4_probe(). - */ - printk(KERN_INFO "IOC4 loading sgiioc4 submodule\n"); - INIT_WORK(work, ioc4_load_modules); - schedule_work(work); - } + /* Request the module from a work procedure as the modprobe + * goes out to a userland helper and that will hang if done + * directly from ioc4_probe(). + */ + printk(KERN_INFO "IOC4 loading sgiioc4 submodule\n"); + schedule_work(&ioc4_load_modules_work); } return 0; @@ -498,7 +487,7 @@ static void __exit ioc4_exit(void) { /* Ensure ioc4_load_modules() has completed before exiting */ - flush_scheduled_work(); + flush_work_sync(&ioc4_load_modules_work); pci_unregister_driver(&ioc4_driver); } -- 2.7.4