providers/qedr: Fix qelr_alloc_context error flow

[ Upstream commit 7ffc47d ]

Fix the error flow of qelr_alloc_context() by making sure to free the
allocated resources.

Fixes: cae4a99 ("libqedr: add support for XRC-SRQ's.")
Signed-off-by: Kamal Heib <kheib@redhat.com>
Signed-off-by: Nicolas Morey <nmorey@suse.com>

providers/qedr/qelr_main.c

@@ -206,7 +206,7 @@ static struct verbs_context *qelr_alloc_context(struct ibv_device *ibdev,
 	ctx->srq_table = calloc(QELR_MAX_SRQ_ID, sizeof(*ctx->srq_table));
 	if (!ctx->srq_table) {
 		DP_ERR(ctx->dbg_fp, "failed to allocate srq_table\n");
-		return NULL;
+		goto cmd_err;
 	}
 
 	ctx->kernel_page_size = sysconf(_SC_PAGESIZE);
@@ -257,11 +257,14 @@ static struct verbs_context *qelr_alloc_context(struct ibv_device *ibdev,
 		DP_ERR(ctx->dbg_fp,
 		       "alloc context: doorbell mapping failed resp.db_pa = %llx resp.db_size=%d context->cmd_fd=%d errno=%d\n",
 		       resp.db_pa, resp.db_size, cmd_fd, errsv);
-		goto cmd_err;
+		goto free_srq_tbl;
 	}
 
 	return &ctx->ibv_ctx;
 
+free_srq_tbl:
+	free(ctx->srq_table);
+
 cmd_err:
 	qelr_err("%s: Failed to allocate context for device.\n", __func__);
 	qelr_close_debug_file(ctx);