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Groups > linux.kernel > #1235868
| From | Vinod Koul <vinod.koul@intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] dmaengine: fix balance of privatecnt |
| Date | 2015-09-30 10:10 +0200 |
| Message-ID | <qekCC-7xs-15@gated-at.bofh.it> (permalink) |
| References | <qcaHn-6Yx-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Sep 24, 2015 at 12:03:35PM +0300, Peter Ujfalusi wrote: > dma_release_channel() decrements privatecnt counter and almost all dma_get* > function increments it with the exception of dma_get_slave_channel(). > In most cases this does not cause issue since normally the channel is not > requested and released, but if a driver requests DMA channel via > dma_get_slave_channel() and releases the channel the privatecnt will be > unbalanced and this will prevent for example getting channel for memcpy. Applied, thanks -- ~Vinod -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH] dmaengine: fix balance of privatecnt Peter Ujfalusi <peter.ujfalusi@ti.com> - 2015-09-24 11:10 +0200 Re: [PATCH] dmaengine: fix balance of privatecnt Vinod Koul <vinod.koul@intel.com> - 2015-09-30 10:10 +0200
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