[PATCH v2 7/8] DMA: Freescale: use spin_lock_bh instead of spin_lock_irqsave

From: Hongbo Zhang The usage of spin_lock_irqsave() is a stronger locking mechanism than is required throughout the driver. The minimum locking required should be used instead. Interrupts will be turned off and context will be saved, it is unnecessary to use irqsave. This patch changes all

[PATCH v2 7/8] DMA: Freescale: use spin_lock_bh instead of spin_lock_irqsave

From: Hongbo Zhang hongbo.zh...@freescale.com The usage of spin_lock_irqsave() is a stronger locking mechanism than is required throughout the driver. The minimum locking required should be used instead. Interrupts will be turned off and context will be saved, it is unnecessary to use irqsave.