Changes in uspace/drv/bus/usb/ehci/main.c [920d0fc:7de1988c] in mainline

File:

• uspace/drv/bus/usb/ehci/main.c (modified) (3 diffs)

uspace/drv/bus/usb/ehci/main.c

@@ -33 +33 @@
  * Main routines of EHCI driver.
  */
+
 #include <ddf/driver.h>
 #include <ddf/interrupt.h>
 #include <device/hw_res.h>
 #include <errno.h>
+#include <stdbool.h>
 #include <str_error.h>
 
@@ -70 +72 @@
 static int ehci_dev_add(ddf_dev_t *device)
 {
+        ddf_fun_t *hc_fun = NULL;
+        bool fun_bound = false;
+
         assert(device);
-#define CHECK_RET_RETURN(ret, message...) \
-if (ret != EOK) { \
-        usb_log_error(message); \
-        return ret; \
-}
 
-        uintptr_t reg_base = 0;
-        size_t reg_size = 0;
+        addr_range_t reg_range;
         int irq = 0;
 
-        int ret = get_my_registers(device, &reg_base, &reg_size, &irq);
-        CHECK_RET_RETURN(ret,
-            "Failed to get memory addresses for %" PRIun ": %s.\n",
-            ddf_dev_get_handle(device), str_error(ret));
-        usb_log_info("Memory mapped regs at 0x%" PRIxn " (size %zu), IRQ %d.\n",
-            reg_base, reg_size, irq);
+        int rc = get_my_registers(device, &reg_range, &irq);
+        if (rc != EOK) {
+                usb_log_error("Failed to get memory addresses for %" PRIun
+                    ": %s.\n", ddf_dev_get_handle(device), str_error(rc));
+                goto error;
+        }
 
-        ret = disable_legacy(device, reg_base, reg_size);
-        CHECK_RET_RETURN(ret,
-            "Failed to disable legacy USB: %s.\n", str_error(ret));
+        usb_log_info("Memory mapped regs at %p (size %zu), IRQ %d.\n",
+            RNGABSPTR(reg_range), RNGSZ(reg_range), irq);
 
-        ddf_fun_t *hc_fun = ddf_fun_create(device, fun_exposed, "ehci_hc");
+        rc = disable_legacy(device, &reg_range);
+        if (rc != EOK) {
+                usb_log_error("Failed to disable legacy USB: %s.\n",
+                    str_error(rc));
+                goto error;
+        }
+
+        hc_fun = ddf_fun_create(device, fun_exposed, "ehci_hc");
         if (hc_fun == NULL) {
                 usb_log_error("Failed to create EHCI function.\n");
-                return ENOMEM;
+                rc = ENOMEM;
+                goto error;
         }
+
         hcd_t *ehci_hc = ddf_fun_data_alloc(hc_fun, sizeof(hcd_t));
         if (ehci_hc == NULL) {
                 usb_log_error("Failed to alloc generic HC driver.\n");
-                return ENOMEM;
+                rc = ENOMEM;
+                goto error;
         }
+
         /* High Speed, no bandwidth */
         hcd_init(ehci_hc, USB_SPEED_HIGH, 0, NULL);
         ddf_fun_set_ops(hc_fun,  &hc_ops);
 
-        ret = ddf_fun_bind(hc_fun);
-        CHECK_RET_RETURN(ret,
-            "Failed to bind EHCI function: %s.\n",
-            str_error(ret));
-        ret = ddf_fun_add_to_category(hc_fun, USB_HC_CATEGORY);
-        CHECK_RET_RETURN(ret,
-            "Failed to add EHCI to HC class: %s.\n",
-            str_error(ret));
+        rc = ddf_fun_bind(hc_fun);
+        if (rc != EOK) {
+                usb_log_error("Failed to bind EHCI function: %s.\n",
+                    str_error(rc));
+                goto error;
+        }
+
+        fun_bound = true;
+
+        rc = ddf_fun_add_to_category(hc_fun, USB_HC_CATEGORY);
+        if (rc != EOK) {
+                usb_log_error("Failed to add EHCI to HC class: %s.\n",
+                    str_error(rc));
+                goto error;
+        }
 
         usb_log_info("Controlling new EHCI device `%s' (handle %" PRIun ").\n",
@@ -119 +135 @@
 
         return EOK;
-#undef CHECK_RET_RETURN
+error:
+        if (fun_bound)
+                ddf_fun_unbind(hc_fun);
+        if (hc_fun != NULL)
+                ddf_fun_destroy(hc_fun);
+        return rc;
 }