firmware: ti_sci: Use the bitmap API to allocate bitmaps

Use devm_bitmap_zalloc() instead of hand-writing them.

It is less verbose and it improves the semantic.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/3ee11e9e83f7c1552d237f5c28f554319fcbbf1f.1657308216.git.christophe.jaillet@wanadoo.fr

diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c
index ebc32bb..522be2b 100644 (file)
--- a/drivers/firmware/ti_sci.c
+++ b/drivers/firmware/ti_sci.c
@@ -3201,9 +3201,8 @@ devm_ti_sci_get_resource_sets(const struct ti_sci_handle *handle,
 
                valid_set = true;
                res_count = res->desc[i].num + res->desc[i].num_sec;
-               res->desc[i].res_map =
-                       devm_kzalloc(dev, BITS_TO_LONGS(res_count) *
-                                    sizeof(*res->desc[i].res_map), GFP_KERNEL);
+               res->desc[i].res_map = devm_bitmap_zalloc(dev, res_count,
+                                                         GFP_KERNEL);
                if (!res->desc[i].res_map)
                        return ERR_PTR(-ENOMEM);
        }