diff options
| author | Jack Xu <jack.xu@intel.com> | 2020-11-06 19:28:03 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-11-13 20:38:53 +1100 |
| commit | 912eebeb72b499de3b25cda9e2b9e3f5e91bed12 (patch) | |
| tree | f304dcbb0303d0832c17ceecbaea1c5b0548aede /drivers | |
| parent | 4f1e941560e1c29299c3b1b9f90f4aea790d12dc (diff) | |
| download | linux-912eebeb72b499de3b25cda9e2b9e3f5e91bed12.tar.bz2 | |
crypto: qat - add check for null pointer
Add null pointer check when freeing the memory for firmware.
Signed-off-by: Jack Xu <jack.xu@intel.com>
Co-developed-by: Wojciech Ziemba <wojciech.ziemba@intel.com>
Signed-off-by: Wojciech Ziemba <wojciech.ziemba@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/crypto/qat/qat_common/qat_uclo.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/drivers/crypto/qat/qat_common/qat_uclo.c b/drivers/crypto/qat/qat_common/qat_uclo.c index 32c64a48926f..7b02c4e165c6 100644 --- a/drivers/crypto/qat/qat_common/qat_uclo.c +++ b/drivers/crypto/qat/qat_common/qat_uclo.c @@ -1233,11 +1233,15 @@ static int qat_uclo_simg_alloc(struct icp_qat_fw_loader_handle *handle, static void qat_uclo_simg_free(struct icp_qat_fw_loader_handle *handle, struct icp_firml_dram_desc *dram_desc) { - dma_free_coherent(&handle->pci_dev->dev, - (size_t)(dram_desc->dram_size), - dram_desc->dram_base_addr_v, - dram_desc->dram_bus_addr); - memset(dram_desc, 0, sizeof(*dram_desc)); + if (handle && dram_desc && dram_desc->dram_base_addr_v) { + dma_free_coherent(&handle->pci_dev->dev, + (size_t)(dram_desc->dram_size), + dram_desc->dram_base_addr_v, + dram_desc->dram_bus_addr); + } + + if (dram_desc) + memset(dram_desc, 0, sizeof(*dram_desc)); } static void qat_uclo_ummap_auth_fw(struct icp_qat_fw_loader_handle *handle, @@ -1245,12 +1249,14 @@ static void qat_uclo_ummap_auth_fw(struct icp_qat_fw_loader_handle *handle, { struct icp_firml_dram_desc dram_desc; - dram_desc.dram_base_addr_v = *desc; - dram_desc.dram_bus_addr = ((struct icp_qat_auth_chunk *) - (*desc))->chunk_bus_addr; - dram_desc.dram_size = ((struct icp_qat_auth_chunk *) - (*desc))->chunk_size; - qat_uclo_simg_free(handle, &dram_desc); + if (*desc) { + dram_desc.dram_base_addr_v = *desc; + dram_desc.dram_bus_addr = ((struct icp_qat_auth_chunk *) + (*desc))->chunk_bus_addr; + dram_desc.dram_size = ((struct icp_qat_auth_chunk *) + (*desc))->chunk_size; + qat_uclo_simg_free(handle, &dram_desc); + } } static int qat_uclo_map_auth_fw(struct icp_qat_fw_loader_handle *handle, |