On Sun, 2012-03-11 at 20:36 +0100, Julia Lawall wrote:
> From: Julia Lawall <Julia.Lawall@xxxxxxx>
>
> Convert calls to free_irq so that the second argument is the same as the
> last argument of the corresponding call to request_irq, rather than the
> second to last. Without this property, free_irq does nothing.
>
> Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>
>
> ---
> arch/unicore32/kernel/dma.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/unicore32/kernel/dma.c b/arch/unicore32/kernel/dma.c
> index ae441bc..c813fec 100644
> --- a/arch/unicore32/kernel/dma.c
> +++ b/arch/unicore32/kernel/dma.c
> @@ -173,7 +173,7 @@ int __init puv3_init_dma(void)
> ret = request_irq(IRQ_DMAERR, dma_err_handler, 0, "DMAERR", NULL);
> if (ret) {
> printk(KERN_CRIT "Can't register IRQ for DMAERR\n");
> - free_irq(IRQ_DMA, "DMA");
> + free_irq(IRQ_DMA, NULL);
> return ret;
> }
>
Yeah, it's an obvious mistake. Thanks.
Because the dma device is just located inside PKUnity-3 SoC, and
request_irq() should always return 0, I prefer to remove this free_irq()
line.
Thanks & Regards,
Guan Xuetao
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