dma-fence: correct kernel-doc function parameter @flags

'make htmldocs' complains that dma_fence_unlock_irqrestore() is missing
a description of its @flags parameter. The description is there but it is
missing a ':' sign. Add that and correct the possessive form of "its".

WARNING: ../include/linux/dma-fence.h:414 function parameter 'flags' not described in 'dma_fence_unlock_irqrestore'

Fixes: 3e50679 ("dma-buf: abstract fence locking v2")
Signed-off-by: Randy Dunlap <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Christian König <[email protected]>
Signed-off-by: Christian König <[email protected]>

Author: rddunlap

include/linux/dma-fence.h

@@ -408,9 +408,9 @@ static inline spinlock_t *dma_fence_spinlock(struct dma_fence *fence)
 /**
  * dma_fence_unlock_irqrestore - unlock the fence and irqrestore
  * @fence: the fence to unlock
- * @flags the CPU flags to restore
+ * @flags: the CPU flags to restore
  *
- * Unlock the fence, allowing it to change it's state to signaled again.
+ * Unlock the fence, allowing it to change its state to signaled again.
  */
 #define dma_fence_unlock_irqrestore(fence, flags)	\
 	spin_unlock_irqrestore(dma_fence_spinlock(fence), flags)