ida: Remove assertions that an ID was allocated

Nobody finds value in asserting that an ID that we try to free was
already allocated, so just remove those assertions.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>

lib/idr.c

@@ -491,25 +491,22 @@ void ida_free(struct ida *ida, unsigned int id)
 	struct ida_bitmap *bitmap;
 	unsigned long flags;
 
-	if ((int)id < 0)
-		return;
-
 	xas_lock_irqsave(&xas, flags);
 	bitmap = xas_load(&xas);
 
 	if (xa_is_value(bitmap)) {
 		unsigned long v = xa_to_value(bitmap);
 		if (bit >= BITS_PER_XA_VALUE)
-			goto err;
+			goto not_found;
 		if (!(v & (1UL << bit)))
-			goto err;
+			goto not_found;
 		v &= ~(1UL << bit);
 		if (!v)
 			goto delete;
 		xas_store(&xas, xa_mk_value(v));
 	} else {
 		if (!test_bit(bit, bitmap->bitmap))
-			goto err;
+			goto not_found;
 		__clear_bit(bit, bitmap->bitmap);
 		xas_set_mark(&xas, XA_FREE_MARK);
 		if (bitmap_empty(bitmap->bitmap, IDA_BITMAP_BITS)) {
@@ -518,11 +515,8 @@ void ida_free(struct ida *ida, unsigned int id)
 			xas_store(&xas, NULL);
 		}
 	}
+not_found:
 	xas_unlock_irqrestore(&xas, flags);
-	return;
- err:
-	xas_unlock_irqrestore(&xas, flags);
-	WARN(1, "ida_free called for id=%d which is not allocated.\n", id);
 }
 EXPORT_SYMBOL(ida_free);