crypto: caam - fix error return code in caam_qi_init()

Fix to return error code -ENOMEM from the kmem_cache_create() error
handling case instead of 0(err is 0 here), as done elsewhere in this
function.

Fixes: 67c2315d ("crypto: caam - add Queue Interface (QI) backend support")
Signed-off-by: NWei Yongjun <weiyongjun1@huawei.com>
Acked-by: NHoria Geantă <horia.geanta@nxp.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/caam/qi.c

@@ -789,7 +789,7 @@ int caam_qi_init(struct platform_device *caam_pdev)
 		dev_err(qidev, "Can't allocate CAAM cache\n");
 		free_rsp_fqs();
 		platform_device_unregister(qi_pdev);
-		return err;
+		return -ENOMEM;
 	}
 
 	/* Done with the CGRs; restore the cpus allowed mask */