diff options
| author | Jason Cooper <jason@lakedaemon.net> | 2010-10-09 14:51:10 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-10-10 05:39:47 -0700 |
| commit | 860708d9c8259e087f39505995d4d54b2e499fb9 (patch) | |
| tree | 532864957b84df7c7bef2a5e5aace7a7d68eccef /drivers/staging/brcm80211 | |
| parent | 839fad996bf0eba85c0c6aa67ba8d89d051b6749 (diff) | |
| download | linux-860708d9c8259e087f39505995d4d54b2e499fb9.tar.bz2 | |
staging: brcm80211: remove kernel_thread() for dhd_watchdog_thread.
Replaced kernel_thread() with kthread_run(). Used kthread_should_stop()
in place of watchdog_exited completion. Replaced watchdog_pid with
struct task_struct.
watchdog_tsk is NULL when the task is not running.
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/brcm80211')
| -rw-r--r-- | drivers/staging/brcm80211/brcmfmac/dhd_linux.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/drivers/staging/brcm80211/brcmfmac/dhd_linux.c b/drivers/staging/brcm80211/brcmfmac/dhd_linux.c index f08297fdb282..a23191df7f64 100644 --- a/drivers/staging/brcm80211/brcmfmac/dhd_linux.c +++ b/drivers/staging/brcm80211/brcmfmac/dhd_linux.c @@ -23,6 +23,7 @@ #include <linux/init.h> #include <linux/kernel.h> +#include <linux/kthread.h> #include <linux/slab.h> #include <linux/skbuff.h> #include <linux/netdevice.h> @@ -239,9 +240,8 @@ typedef struct dhd_info { /* Thread based operation */ bool threads_only; struct semaphore sdsem; - long watchdog_pid; + struct task_struct *watchdog_tsk; struct semaphore watchdog_sem; - struct completion watchdog_exited; long dpc_pid; struct semaphore dpc_sem; struct completion dpc_exited; @@ -1306,10 +1306,10 @@ static int dhd_watchdog_thread(void *data) } #endif /* DHD_SCHED */ - DAEMONIZE("dhd_watchdog"); - /* Run until signal received */ while (1) { + if (kthread_should_stop()) + break; if (down_interruptible(&dhd->watchdog_sem) == 0) { if (dhd->pub.dongle_reset == FALSE) { WAKE_LOCK(&dhd->pub, WAKE_LOCK_WATCHDOG); @@ -1324,14 +1324,14 @@ static int dhd_watchdog_thread(void *data) } WAKE_LOCK_DESTROY(&dhd->pub, WAKE_LOCK_WATCHDOG); - complete_and_exit(&dhd->watchdog_exited, 0); + return 0; } static void dhd_watchdog(unsigned long data) { dhd_info_t *dhd = (dhd_info_t *) data; - if (dhd->watchdog_pid >= 0) { + if (dhd->watchdog_tsk) { up(&dhd->watchdog_sem); /* Reschedule the watchdog */ @@ -2004,10 +2004,15 @@ dhd_pub_t *dhd_attach(osl_t *osh, struct dhd_bus *bus, uint bus_hdrlen) if (dhd_dpc_prio >= 0) { /* Initialize watchdog thread */ sema_init(&dhd->watchdog_sem, 0); - init_completion(&dhd->watchdog_exited); - dhd->watchdog_pid = kernel_thread(dhd_watchdog_thread, dhd, 0); + dhd->watchdog_tsk = kthread_run(dhd_watchdog_thread, dhd, + "dhd_watchdog"); + if (IS_ERR(dhd->watchdog_tsk)) { + printk(KERN_WARNING + "dhd_watchdog thread failed to start\n"); + dhd->watchdog_tsk = NULL; + } } else { - dhd->watchdog_pid = -1; + dhd->watchdog_tsk = NULL; } /* Set up the bottom half handler */ @@ -2334,9 +2339,9 @@ void dhd_detach(dhd_pub_t *dhdp) unregister_netdev(ifp->net); } - if (dhd->watchdog_pid >= 0) { - KILL_PROC(dhd->watchdog_pid, SIGTERM); - wait_for_completion(&dhd->watchdog_exited); + if (dhd->watchdog_tsk) { + kthread_stop(dhd->watchdog_tsk); + dhd->watchdog_tsk = NULL; } if (dhd->dpc_pid >= 0) { |