diff options
| author | Janusz Dziedzic <janusz.dziedzic@tieto.com> | 2013-08-09 08:39:13 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@qca.qualcomm.com> | 2013-08-13 17:39:01 +0300 |
| commit | 9c5ae6915d6f8cf682006e4067de80d22431d92e (patch) | |
| tree | 0f3509528d391a8bcf93b5ea7dd1eb8371427479 /drivers/net/wireless/ath/ath10k/ce.c | |
| parent | 4e72b232a47fa773c49c4e63634df18be5ba3bb3 (diff) | |
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>
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/ce.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath10k/ce.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c index 9c9f0814bfcd..8135d5837b36 100644 --- a/drivers/net/wireless/ath/ath10k/ce.c +++ b/drivers/net/wireless/ath/ath10k/ce.c @@ -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; /* |