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path: root/drivers/net/wireless/ath/ath11k/dp.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath11k/dp.c')
-rw-r--r--drivers/net/wireless/ath/ath11k/dp.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/ath11k/dp.c b/drivers/net/wireless/ath/ath11k/dp.c
index 8975dc57ad..1a62407e5a 100644
--- a/drivers/net/wireless/ath/ath11k/dp.c
+++ b/drivers/net/wireless/ath/ath11k/dp.c
@@ -104,11 +104,14 @@ void ath11k_dp_srng_cleanup(struct ath11k_base *ab, struct dp_srng *ring)
if (!ring->vaddr_unaligned)
return;
- if (ring->cached)
+ if (ring->cached) {
+ dma_unmap_single(ab->dev, ring->paddr_unaligned, ring->size,
+ DMA_FROM_DEVICE);
kfree(ring->vaddr_unaligned);
- else
+ } else {
dma_free_coherent(ab->dev, ring->size, ring->vaddr_unaligned,
ring->paddr_unaligned);
+ }
ring->vaddr_unaligned = NULL;
}
@@ -249,7 +252,18 @@ int ath11k_dp_srng_setup(struct ath11k_base *ab, struct dp_srng *ring,
if (cached) {
ring->vaddr_unaligned = kzalloc(ring->size, GFP_KERNEL);
- ring->paddr_unaligned = virt_to_phys(ring->vaddr_unaligned);
+ if (!ring->vaddr_unaligned)
+ return -ENOMEM;
+
+ ring->paddr_unaligned = dma_map_single(ab->dev,
+ ring->vaddr_unaligned,
+ ring->size,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(ab->dev, ring->paddr_unaligned)) {
+ kfree(ring->vaddr_unaligned);
+ ring->vaddr_unaligned = NULL;
+ return -ENOMEM;
+ }
}
}