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usb: musb: musbhsdma: drop the controller check in dma_controller_destroy()

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This check is hardly required and alas is wrong. 'c' might be NULL but
the chances are low that 'controller' after the container_of() becomes
NULL.

Since no other DMA implementation is doing that and musb-core does not
call it with a NULL pointer it can dropped.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Sebastian Andrzej Siewior 2013-06-19 17:38:10 +02:00 committed by Felipe Balbi
parent 260eba39bc
commit ff2283229d
1 changed files with 0 additions and 3 deletions
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3
drivers/usb/musb/musbhsdma.c
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@ -371,9 +371,6 @@ void dma_controller_destroy(struct dma_controller *c)
struct musb_dma_controller *controller = container_of(c,
struct musb_dma_controller, controller);
if (!controller)
return;
if (controller->irq)
free_irq(controller->irq, c);