From ff7690b48ae8571d930a2621e21f6e5a41e42b6d Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Wed, 9 Feb 2011 07:46:47 +0000 Subject: dma: shdma: add checking the DMAOR_AE in sh_dmae_err The irq numbers of tranfer end and address error are assigned same number on some CPU. So the sh_dmae_err() should check the AE flag in DMAOR. Signed-off-by: Yoshihiro Shimoda Signed-off-by: Paul Mundt --- drivers/dma/shdma.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c index 6451b581a70b..d50da41ac328 100644 --- a/drivers/dma/shdma.c +++ b/drivers/dma/shdma.c @@ -865,7 +865,12 @@ static unsigned int sh_dmae_reset(struct sh_dmae_device *shdev) static irqreturn_t sh_dmae_err(int irq, void *data) { - return IRQ_RETVAL(sh_dmae_reset(data)); + struct sh_dmae_device *shdev = data; + + if (dmaor_read(shdev) & DMAOR_AE) + return IRQ_RETVAL(sh_dmae_reset(data)); + else + return IRQ_NONE; } static void dmae_do_tasklet(unsigned long data) -- cgit v1.2.3