[SPARC64]: Fix probe error handling in bbc_{envctrl,i2c}.c driver.

drivers/sbus/char/bbc_envctrl.c

@@ -571,12 +571,13 @@ static void attach_one_fan(struct linux_ebus_child *echild, int fan_idx)
 	set_fan_speeds(fp);
 }
 
-void bbc_envctrl_init(void)
+int bbc_envctrl_init(void)
 {
 	struct linux_ebus_child *echild;
 	int temp_index = 0;
 	int fan_index = 0;
 	int devidx = 0;
+	int err = 0;
 
 	while ((echild = bbc_i2c_getdev(devidx++)) != NULL) {
 		if (!strcmp(echild->prom_name, "temperature"))
@@ -585,7 +586,8 @@ void bbc_envctrl_init(void)
 			attach_one_fan(echild, fan_index++);
 	}
 	if (temp_index != 0 && fan_index != 0)
-		kernel_thread(kenvctrld, NULL, CLONE_FS | CLONE_FILES);
+		err = kernel_thread(kenvctrld, NULL, CLONE_FS | CLONE_FILES);
+	return err;
 }
 
 static void destroy_one_temp(struct bbc_cpu_temperature *tp)

drivers/sbus/char/bbc_i2c.c

@@ -430,14 +430,15 @@ static int __init bbc_present(void)
 	return 0;
 }
 
-extern void bbc_envctrl_init(void);
+extern int bbc_envctrl_init(void);
 extern void bbc_envctrl_cleanup(void);
+static void bbc_i2c_cleanup(void);
 
 static int __init bbc_i2c_init(void)
 {
 	struct linux_ebus *ebus = NULL;
 	struct linux_ebus_device *edev = NULL;
-	int index = 0;
+	int err, index = 0;
 
 	if (tlb_type != cheetah || !bbc_present())
 		return -ENODEV;
@@ -454,11 +455,13 @@ static int __init bbc_i2c_init(void)
 	if (!index)
 		return -ENODEV;
 
-	bbc_envctrl_init();
-	return 0;
+	err = bbc_envctrl_init();
+	if (err)
+		bbc_i2c_cleanup();
+	return err;
 }
 
-static void __exit bbc_i2c_cleanup(void)
+static void bbc_i2c_cleanup(void)
 {
 	struct bbc_i2c_bus *bp = all_bbc_i2c;