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[SUNGEM]: Fix NAPI regression with reset work 

sungem's gem_reset_task() will unconditionally try to disable NAPI even
when it's called while the interface is not operating and hence the NAPI
struct isn't enabled. Make napi_disable() depend on gp->running.

Also removes a superfluous test of gp->running in the same function.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Johannes Berg 2007-11-29 21:51:36 +11:00 committed by Herbert Xu
parent 5dba479711
commit dde655c9df
1 changed files with 5 additions and 6 deletions
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7
drivers/net/sungem.c
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@ -2281,14 +2281,12 @@ static void gem_reset_task(struct work_struct *work)
mutex_lock(&gp->pm_mutex); mutex_lock(&gp->pm_mutex);
if (gp->opened)
napi_disable(&gp->napi); napi_disable(&gp->napi);
spin_lock_irq(&gp->lock); spin_lock_irq(&gp->lock);
spin_lock(&gp->tx_lock); spin_lock(&gp->tx_lock);
if (gp->running == 0)
goto not_running;
if (gp->running) { if (gp->running) {
netif_stop_queue(gp->dev); netif_stop_queue(gp->dev);
@ -2298,12 +2296,13 @@ static void gem_reset_task(struct work_struct *work)
gem_set_link_modes(gp); gem_set_link_modes(gp);
netif_wake_queue(gp->dev); netif_wake_queue(gp->dev);
} }
not_running:
gp->reset_task_pending = 0; gp->reset_task_pending = 0;
spin_unlock(&gp->tx_lock); spin_unlock(&gp->tx_lock);
spin_unlock_irq(&gp->lock); spin_unlock_irq(&gp->lock);
if (gp->opened)
napi_enable(&gp->napi); napi_enable(&gp->napi);
mutex_unlock(&gp->pm_mutex); mutex_unlock(&gp->pm_mutex);