diff options
| author | vjagadish <vjagadish@nvidia.com> | 2011-10-17 14:14:58 +0530 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2011-11-30 21:49:25 -0800 |
| commit | 230b1f25e0616503ac5866729bbae19109305803 (patch) | |
| tree | dc8120165d1acb8fd5fbe077961f7a5d1d4a9121 | |
| parent | 3c252892a2a832b2a682110c7bcf10ba3411bba0 (diff) | |
usb: host: tegra: Fix for possible race condition in timer handler
Acquire the spin lock before disabling the clock.
Bug 876433
Change-Id: Iddb39761cb85e5f4c45061f3b2753d7b0fa64944
Reviewed-on: http://git-master/r/58343
Reviewed-by: Venkata Jagadish <vjagadish@nvidia.com>
Tested-by: Venkata Jagadish <vjagadish@nvidia.com>
Reviewed-by: Suresh Mangipudi <smangipudi@nvidia.com>
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
Rebase-Id: Rda16e8bd08be58b6a3304b8cc3a7520417b341d4
| -rw-r--r-- | drivers/usb/host/ehci-tegra.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 196bd4c7baeb..19383e3fd3a8 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -933,12 +933,12 @@ static void clk_timer_work_handler(struct work_struct* clk_timer_work) { spin_unlock_irqrestore(&tegra->ehci->lock, flags); if (timer_event) { - clk_disable(tegra->emc_clk); - clk_disable(tegra->sclk_clk); spin_lock_irqsave(&tegra->ehci->lock, flags); tegra->clock_enabled = 0; tegra->timer_event = 0; spin_unlock_irqrestore(&tegra->ehci->lock, flags); + clk_disable(tegra->emc_clk); + clk_disable(tegra->sclk_clk); return; } |