Re: [PATCH] common: dma-mapping: add support for generic dma_mmap_* calls
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From: Clemens Ladisch <clemens@ladisch.de>
Date: 2012-06-29 11:10:05
Also in:
linux-arch, linux-arm-kernel, linux-mm, lkml
Marek Szyprowski wrote:
quoted hunk ↗ jump to hunk
+++ b/drivers/base/dma-mapping.c... +int dma_common_mmap(struct device *dev, struct vm_area_struct *vma, + void *cpu_addr, dma_addr_t dma_addr, size_t size) +{ + int ret = -ENXIO; + ... + if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret)) + return ret;
This will return -ENXIO if dma_mmap_from_coherent() succeeds. Regards, Clemens