From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sean Anderson <sean.anderson@seco.com>,
Richard Weinberger <richard@nod.at>,
Herbert Xu <herbert@gondor.apana.org.au>,
Sasha Levin <sashal@kernel.org>,
linux-crypto@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH AUTOSEL 5.13 04/46] crypto: mxs-dcp - Check for DMA mapping errors
Date: Sun, 5 Sep 2021 21:20:09 -0400 [thread overview]
Message-ID: <20210906012052.929174-4-sashal@kernel.org> (raw)
In-Reply-To: <20210906012052.929174-1-sashal@kernel.org>
From: Sean Anderson <sean.anderson@seco.com>
[ Upstream commit df6313d707e575a679ada3313358289af24454c0 ]
After calling dma_map_single(), we must also call dma_mapping_error().
This fixes the following warning when compiling with CONFIG_DMA_API_DEBUG:
[ 311.241478] WARNING: CPU: 0 PID: 428 at kernel/dma/debug.c:1027 check_unmap+0x79c/0x96c
[ 311.249547] DMA-API: mxs-dcp 2280000.crypto: device driver failed to check map error[device address=0x00000000860cb080] [size=32 bytes] [mapped as single]
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/crypto/mxs-dcp.c | 45 +++++++++++++++++++++++++++++++---------
1 file changed, 35 insertions(+), 10 deletions(-)
diff --git a/drivers/crypto/mxs-dcp.c b/drivers/crypto/mxs-dcp.c
index d6a7784d2988..f397cc5bf102 100644
--- a/drivers/crypto/mxs-dcp.c
+++ b/drivers/crypto/mxs-dcp.c
@@ -170,15 +170,19 @@ static struct dcp *global_sdcp;
static int mxs_dcp_start_dma(struct dcp_async_ctx *actx)
{
+ int dma_err;
struct dcp *sdcp = global_sdcp;
const int chan = actx->chan;
uint32_t stat;
unsigned long ret;
struct dcp_dma_desc *desc = &sdcp->coh->desc[actx->chan];
-
dma_addr_t desc_phys = dma_map_single(sdcp->dev, desc, sizeof(*desc),
DMA_TO_DEVICE);
+ dma_err = dma_mapping_error(sdcp->dev, desc_phys);
+ if (dma_err)
+ return dma_err;
+
reinit_completion(&sdcp->completion[chan]);
/* Clear status register. */
@@ -216,18 +220,29 @@ static int mxs_dcp_start_dma(struct dcp_async_ctx *actx)
static int mxs_dcp_run_aes(struct dcp_async_ctx *actx,
struct skcipher_request *req, int init)
{
+ dma_addr_t key_phys, src_phys, dst_phys;
struct dcp *sdcp = global_sdcp;
struct dcp_dma_desc *desc = &sdcp->coh->desc[actx->chan];
struct dcp_aes_req_ctx *rctx = skcipher_request_ctx(req);
int ret;
- dma_addr_t key_phys = dma_map_single(sdcp->dev, sdcp->coh->aes_key,
- 2 * AES_KEYSIZE_128,
- DMA_TO_DEVICE);
- dma_addr_t src_phys = dma_map_single(sdcp->dev, sdcp->coh->aes_in_buf,
- DCP_BUF_SZ, DMA_TO_DEVICE);
- dma_addr_t dst_phys = dma_map_single(sdcp->dev, sdcp->coh->aes_out_buf,
- DCP_BUF_SZ, DMA_FROM_DEVICE);
+ key_phys = dma_map_single(sdcp->dev, sdcp->coh->aes_key,
+ 2 * AES_KEYSIZE_128, DMA_TO_DEVICE);
+ ret = dma_mapping_error(sdcp->dev, key_phys);
+ if (ret)
+ return ret;
+
+ src_phys = dma_map_single(sdcp->dev, sdcp->coh->aes_in_buf,
+ DCP_BUF_SZ, DMA_TO_DEVICE);
+ ret = dma_mapping_error(sdcp->dev, src_phys);
+ if (ret)
+ goto err_src;
+
+ dst_phys = dma_map_single(sdcp->dev, sdcp->coh->aes_out_buf,
+ DCP_BUF_SZ, DMA_FROM_DEVICE);
+ ret = dma_mapping_error(sdcp->dev, dst_phys);
+ if (ret)
+ goto err_dst;
if (actx->fill % AES_BLOCK_SIZE) {
dev_err(sdcp->dev, "Invalid block size!\n");
@@ -265,10 +280,12 @@ static int mxs_dcp_run_aes(struct dcp_async_ctx *actx,
ret = mxs_dcp_start_dma(actx);
aes_done_run:
+ dma_unmap_single(sdcp->dev, dst_phys, DCP_BUF_SZ, DMA_FROM_DEVICE);
+err_dst:
+ dma_unmap_single(sdcp->dev, src_phys, DCP_BUF_SZ, DMA_TO_DEVICE);
+err_src:
dma_unmap_single(sdcp->dev, key_phys, 2 * AES_KEYSIZE_128,
DMA_TO_DEVICE);
- dma_unmap_single(sdcp->dev, src_phys, DCP_BUF_SZ, DMA_TO_DEVICE);
- dma_unmap_single(sdcp->dev, dst_phys, DCP_BUF_SZ, DMA_FROM_DEVICE);
return ret;
}
@@ -557,6 +574,10 @@ static int mxs_dcp_run_sha(struct ahash_request *req)
dma_addr_t buf_phys = dma_map_single(sdcp->dev, sdcp->coh->sha_in_buf,
DCP_BUF_SZ, DMA_TO_DEVICE);
+ ret = dma_mapping_error(sdcp->dev, buf_phys);
+ if (ret)
+ return ret;
+
/* Fill in the DMA descriptor. */
desc->control0 = MXS_DCP_CONTROL0_DECR_SEMAPHORE |
MXS_DCP_CONTROL0_INTERRUPT |
@@ -589,6 +610,10 @@ static int mxs_dcp_run_sha(struct ahash_request *req)
if (rctx->fini) {
digest_phys = dma_map_single(sdcp->dev, sdcp->coh->sha_out_buf,
DCP_SHA_PAY_SZ, DMA_FROM_DEVICE);
+ ret = dma_mapping_error(sdcp->dev, digest_phys);
+ if (ret)
+ goto done_run;
+
desc->control0 |= MXS_DCP_CONTROL0_HASH_TERM;
desc->payload = digest_phys;
}
--
2.30.2
next prev parent reply other threads:[~2021-09-06 1:23 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-06 1:20 [PATCH AUTOSEL 5.13 01/46] locking/mutex: Fix HANDOFF condition Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 02/46] regmap: fix the offset of register error log Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 03/46] regulator: tps65910: Silence deferred probe error Sasha Levin
2021-09-06 1:20 ` Sasha Levin [this message]
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 05/46] sched/deadline: Fix reset_on_fork reporting of DL tasks Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 06/46] power: supply: axp288_fuel_gauge: Report register-address on readb / writeb errors Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 07/46] crypto: omap-sham - clear dma flags only after omap_sham_update_dma_stop() Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 08/46] sched/deadline: Fix missing clock update in migrate_task_rq_dl() Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 09/46] rcu/tree: Handle VM stoppage in stall detection Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 10/46] EDAC/mce_amd: Do not load edac_mce_amd module on guests Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 11/46] posix-cpu-timers: Force next expiration recalc after itimer reset Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 12/46] hrtimer: Avoid double reprogramming in __hrtimer_start_range_ns() Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 13/46] hrtimer: Ensure timerfd notification for HIGHRES=n Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 14/46] udf: Check LVID earlier Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 15/46] udf: Fix iocharset=utf8 mount option Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 16/46] isofs: joliet: " Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 17/46] bcache: add proper error unwinding in bcache_device_init Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 18/46] nbd: add the check to prevent overflow in __nbd_ioctl() Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 19/46] blk-throtl: optimize IOPS throttle for large IO scenarios Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 20/46] nvme-tcp: don't update queue count when failing to set io queues Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 21/46] nvme-rdma: " Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 22/46] nvmet: pass back cntlid on successful completion Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 23/46] power: supply: smb347-charger: Add missing pin control activation Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 24/46] power: supply: max17042_battery: fix typo in MAx17042_TOFF Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 25/46] s390/cio: add dev_busid sysfs entry for each subchannel Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 26/46] s390/zcrypt: fix wrong offset index for APKA master key valid state Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 27/46] libata: fix ata_host_start() Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 28/46] sched/topology: Skip updating masks for non-online nodes Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 29/46] crypto: omap - Fix inconsistent locking of device lists Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 30/46] crypto: qat - do not ignore errors from enable_vf2pf_comms() Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 31/46] crypto: qat - handle both source of interrupt in VF ISR Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 32/46] crypto: qat - fix reuse of completion variable Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 33/46] crypto: qat - fix naming for init/shutdown VF to PF notifications Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 34/46] crypto: qat - do not export adf_iov_putmsg() Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 35/46] crypto: hisilicon/sec - fix the abnormal exiting process Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 36/46] crypto: hisilicon/sec - modify the hardware endian configuration Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 37/46] crypto: tcrypt - Fix missing return value check Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 38/46] fcntl: fix potential deadlocks for &fown_struct.lock Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 39/46] fcntl: fix potential deadlock for &fasync_struct.fa_lock Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 40/46] udf_get_extendedattr() had no boundary checks Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 41/46] io-wq: remove GFP_ATOMIC allocation off schedule out path Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 42/46] s390/kasan: fix large PMD pages address alignment check Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 43/46] s390/pci: fix misleading rc in clp_set_pci_fn() Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 44/46] s390/debug: keep debug data on resize Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 45/46] s390/debug: fix debug area life cycle Sasha Levin
2021-09-06 1:20 ` [PATCH AUTOSEL 5.13 46/46] s390/ap: fix state machine hang after failure to enable irq Sasha Levin
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