[PATCH] zd1211rw: Added workqueue
For housekeeping and watchdog tasks a workqueue is created. The central workqueue is not used to prevent crashes creates by bugs. It might be changed, when the housekeeping is stabilized. Signed-off-by: Ulrich Kunitz <kune@deine-taler.de> Signed-off-by: Daniel Drake <dsd@gentoo.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -24,6 +24,7 @@
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#include <linux/errno.h>
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#include <linux/skbuff.h>
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#include <linux/usb.h>
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#include <linux/workqueue.h>
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#include <net/ieee80211.h>
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#include "zd_def.h"
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@ -1112,12 +1113,20 @@ static struct usb_driver driver = {
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.disconnect = disconnect,
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};
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struct workqueue_struct *zd_workqueue;
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static int __init usb_init(void)
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{
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int r;
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pr_debug("usb_init()\n");
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zd_workqueue = create_singlethread_workqueue(driver.name);
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if (zd_workqueue == NULL) {
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printk(KERN_ERR "%s: couldn't create workqueue\n", driver.name);
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return -ENOMEM;
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}
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r = usb_register(&driver);
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if (r) {
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printk(KERN_ERR "usb_register() failed. Error number %d\n", r);
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@ -1132,6 +1141,7 @@ static void __exit usb_exit(void)
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{
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pr_debug("usb_exit()\n");
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usb_deregister(&driver);
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destroy_workqueue(zd_workqueue);
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}
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module_init(usb_init);
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@ -238,4 +238,6 @@ int zd_usb_iowrite16v(struct zd_usb *usb, const struct zd_ioreq16 *ioreqs,
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int zd_usb_rfwrite(struct zd_usb *usb, u32 value, u8 bits);
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extern struct workqueue_struct *zd_workqueue;
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#endif /* _ZD_USB_H */
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