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ath10k: check allocation errors in CE 

Handle pci_alloc_consistent(), kmalloc()
errors in copy engine module.
Found during code review.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Janusz Dziedzic 2013-08-09 08:39:13 +02:00 committed by Kalle Valo
parent 4e72b232a4
commit 9c5ae6915d
1 changed files with 22 additions and 0 deletions
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22
drivers/net/wireless/ath/ath10k/ce.c
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@ -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;
/*