Changeset 86341e2 in mainline

Timestamp:

2011-02-28T17:11:27Z (14 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d79a101f

Parents:

dced52a

Message:

Refactoring

File:

• uspace/drv/uhci-hcd/main.c (modified) (3 diffs)

uspace/drv/uhci-hcd/main.c

@@ -70 +70 @@
 }
 /*----------------------------------------------------------------------------*/
-#define CHECK_RET_RETURN(ret, message...) \
-if (ret != EOK) { \
-        usb_log_error(message); \
-        return ret; \
-}
-
 static int uhci_add_device(ddf_dev_t *device)
 {
         assert(device);
+        uhci_t *hcd = NULL;
+#define CHECK_RET_FREE_HC_RETURN(ret, message...) \
+if (ret != EOK) { \
+        usb_log_error(message); \
+        if (hcd != NULL) \
+                free(hcd); \
+        return ret; \
+}
 
         usb_log_info("uhci_add_device() called\n");
@@ -88 +90 @@
         int ret =
             pci_get_my_registers(device, &io_reg_base, &io_reg_size, &irq);
-
-        CHECK_RET_RETURN(ret,
+        CHECK_RET_FREE_HC_RETURN(ret,
             "Failed(%d) to get I/O addresses:.\n", ret, device->handle);
         usb_log_info("I/O regs at 0x%X (size %zu), IRQ %d.\n",
@@ -95 +96 @@
 
 //      ret = pci_enable_interrupts(device);
-//      CHECK_RET_RETURN(ret, "Failed(%d) to get enable interrupts:\n", ret);
+//      CHECK_RET_FREE_HC_RETURN(ret, "Failed(%d) to get enable interrupts:\n", ret);
 
-        uhci_t *uhci_hc = malloc(sizeof(uhci_t));
-        ret = (uhci_hc != NULL) ? EOK : ENOMEM;
-        CHECK_RET_RETURN(ret, "Failed to allocate memory for uhci hcd driver.\n");
+        hcd = malloc(sizeof(uhci_t));
+        ret = (hcd != NULL) ? EOK : ENOMEM;
+        CHECK_RET_FREE_HC_RETURN(ret, "Failed(%d) to allocate memory for uhci hcd.\n",
+            ret);
 
-        ret = uhci_init(uhci_hc, device, (void*)io_reg_base, io_reg_size);
-        if (ret != EOK) {
-                usb_log_error("Failed to init uhci-hcd.\n");
-                free(uhci_hc);
-                return ret;
-        }
+        ret = uhci_init(hcd, device, (void*)io_reg_base, io_reg_size);
+        CHECK_RET_FREE_HC_RETURN(ret, "Failed(%d) to init uhci-hcd.\n",
+            ret);
+#undef CHECK_RET_FREE_HC_RETURN
 
         /*
-         * We might free uhci_hc, but that does not matter since no one
+         * We might free hcd, but that does not matter since no one
          * else would access driver_data anyway.
          */
-        device->driver_data = uhci_hc;
+        device->driver_data = hcd;
+
+        ddf_fun_t *rh = NULL;
+#define CHECK_RET_FINI_FREE_RETURN(ret, message...) \
+if (ret != EOK) { \
+        usb_log_error(message); \
+        if (hcd != NULL) {\
+                uhci_fini(hcd); \
+                free(hcd); \
+        } \
+        if (rh != NULL) \
+                free(rh); \
+        return ret; \
+}
+
         ret = register_interrupt_handler(device, irq, irq_handler,
-            &uhci_hc->interrupt_code);
-        if (ret != EOK) {
-                usb_log_error("Failed to register interrupt handler.\n");
-                uhci_fini(uhci_hc);
-                free(uhci_hc);
-                return ret;
-        }
+            &hcd->interrupt_code);
+        CHECK_RET_FINI_FREE_RETURN(ret, "Failed(%d) to register interrupt handler.\n",
+            ret);
 
-        ddf_fun_t *rh;
         ret = setup_root_hub(&rh, device);
-        if (ret != EOK) {
-                usb_log_error("Failed to setup uhci root hub.\n");
-                uhci_fini(uhci_hc);
-                free(uhci_hc);
-                return ret;
-        }
-        rh->driver_data = uhci_hc->ddf_instance;
+        CHECK_RET_FINI_FREE_RETURN(ret, "Failed(%d) to setup UHCI root hub.\n",
+            ret);
+        rh->driver_data = hcd->ddf_instance;
 
         ret = ddf_fun_bind(rh);
-        if (ret != EOK) {
-                usb_log_error("Failed to register root hub.\n");
-                uhci_fini(uhci_hc);
-                free(uhci_hc);
-                free(rh);
-                return ret;
-        }
+        CHECK_RET_FINI_FREE_RETURN(ret, "Failed(%d) to register UHCI root hub.\n",
+            ret);
 
         return EOK;
+#undef CHECK_RET_FINI_FREE_RETURN
 }
 /*----------------------------------------------------------------------------*/