crypto: hisilicon - fix a NULL vs IS_ERR() bug in sec_create_qp_ctx()

The hisi_acc_create_sgl_pool() function returns error pointers, it never
returns NULL pointers.

Fixes: 416d82204df4 ("crypto: hisilicon - add HiSilicon SEC V2 driver")
Signed-off-by: Dan Carpenter <[e-mail]>
Signed-off-by: Herbert Xu <[e-mail]>

drivers/crypto/hisilicon/sec2/sec_crypto.c

···
 
 	qp_ctx->c_in_pool = hisi_acc_create_sgl_pool(dev, QM_Q_DEPTH,
 						     SEC_SGL_SGE_NR);
-	if (!qp_ctx->c_in_pool) {
+	if (IS_ERR(qp_ctx->c_in_pool)) {
 		dev_err(dev, "fail to create sgl pool for input!\n");
 		goto err_free_req_list;
 	}
 
 	qp_ctx->c_out_pool = hisi_acc_create_sgl_pool(dev, QM_Q_DEPTH,
 						      SEC_SGL_SGE_NR);
-	if (!qp_ctx->c_out_pool) {
+	if (IS_ERR(qp_ctx->c_out_pool)) {
 		dev_err(dev, "fail to create sgl pool for output!\n");
 		goto err_free_c_in_pool;
 	}