提交 9c5ae691 编写于 作者: J Janusz Dziedzic 提交者: Kalle Valo

ath10k: check allocation errors in CE

Handle pci_alloc_consistent(), kmalloc()
errors in copy engine module.
Found during code review.
Signed-off-by: NJanusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: NKalle Valo <kvalo@qca.qualcomm.com>
上级 4e72b232
......@@ -941,6 +941,12 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
(nentries * sizeof(struct ce_desc) +
CE_DESC_RING_ALIGN),
&base_addr);
if (!src_ring->base_addr_owner_space_unaligned) {
kfree(ce_state->src_ring);
ce_state->src_ring = NULL;
return -ENOMEM;
}
src_ring->base_addr_ce_space_unaligned = base_addr;
src_ring->base_addr_owner_space = PTR_ALIGN(
......@@ -957,6 +963,16 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
src_ring->shadow_base_unaligned =
kmalloc((nentries * sizeof(struct ce_desc) +
CE_DESC_RING_ALIGN), GFP_KERNEL);
if (!src_ring->shadow_base_unaligned) {
pci_free_consistent(ar_pci->pdev,
(nentries * sizeof(struct ce_desc) +
CE_DESC_RING_ALIGN),
src_ring->base_addr_owner_space,
src_ring->base_addr_ce_space);
kfree(ce_state->src_ring);
ce_state->src_ring = NULL;
return -ENOMEM;
}
src_ring->shadow_base = PTR_ALIGN(
src_ring->shadow_base_unaligned,
......@@ -1026,6 +1042,12 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
(nentries * sizeof(struct ce_desc) +
CE_DESC_RING_ALIGN),
&base_addr);
if (!dest_ring->base_addr_owner_space_unaligned) {
kfree(ce_state->dest_ring);
ce_state->dest_ring = NULL;
return -ENOMEM;
}
dest_ring->base_addr_ce_space_unaligned = base_addr;
/*
......
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