crypto: octeontx2 - add missing check for dma_map_single

JIRA: https://issues.redhat.com/browse/RHEL-31478

Upstream Status: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

commit 6a6d6a3
Author: Chen Ni <nichen@iscas.ac.cn>
Date:   Mon Apr 8 01:59:14 2024 +0000

    crypto: octeontx2 - add missing check for dma_map_single

    Add check for dma_map_single() and return error if it fails in order
    to avoid invalid dma address.

    Fixes: e929711 ("crypto: octeontx2 - add ctx_val workaround")
    Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
    Reviewed-by: Bharat Bhushan <bbhushan2@marvell.com>
    Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Signed-off-by: Štěpán Horáček <shoracek@redhat.com>

Author: shoracek

drivers/crypto/marvell/octeontx2/cn10k_cpt.c

@@ -138,6 +138,10 @@ int cn10k_cpt_hw_ctx_init(struct pci_dev *pdev,
 		return -ENOMEM;
 	cptr_dma = dma_map_single(&pdev->dev, hctx, CN10K_CPT_HW_CTX_SIZE,
 				  DMA_BIDIRECTIONAL);
+	if (dma_mapping_error(&pdev->dev, cptr_dma)) {
+		kfree(hctx);
+		return -ENOMEM;
+	}
 
 	cn10k_cpt_hw_ctx_set(hctx, 1);
 	er_ctx->hw_ctx = hctx;