---

yaml --- r: 176345 b: refs/heads/master c: 4ae717d h: refs/heads/master i: 176343: 69a2cdd v: v3
git-mirror · Dec 15, 2009 · a7c787f · a7c787f
1 parent b89435d
commit a7c787f
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Showing 2 changed files with 6 additions and 4 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 603c4ba96be998a8dd7a6f9b23681c49acdf4b64
+refs/heads/master: 4ae717da8d18839487485f6ae608b8542790fdd3
diff --git a/trunk/drivers/char/misc.c b/trunk/drivers/char/misc.c
@@ -214,6 +214,9 @@ int misc_register(struct miscdevice * misc)
 	misc->this_device = device_create(misc_class, misc->parent, dev,
 					  misc, "%s", misc->name);
 	if (IS_ERR(misc->this_device)) {
+		int i = misc->minor;
+		if (i < DYNAMIC_MINORS && i >= 0)
+			misc_minors[i>>3] &= ~(1 << (i & 7));
 		err = PTR_ERR(misc->this_device);
 		goto out;
 	}
@@ -248,9 +251,8 @@ int misc_deregister(struct miscdevice *misc)
 	mutex_lock(&misc_mtx);
 	list_del(&misc->list);
 	device_destroy(misc_class, MKDEV(MISC_MAJOR, misc->minor));
-	if (i < DYNAMIC_MINORS && i>0) {
-		misc_minors[i>>3] &= ~(1 << (misc->minor & 7));
-	}
+	if (i < DYNAMIC_MINORS && i >= 0)
+		misc_minors[i>>3] &= ~(1 << (i & 7));
 	mutex_unlock(&misc_mtx);
 	return 0;
 }