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media: mc: mc-entity.c: Use bitmap_zalloc() when applicable
'ent_enum->bmap' is a bitmap. So use 'bitmap_zalloc()' to simplify code, improve the semantic and avoid some open-coded arithmetic in allocator arguments. Also change the corresponding 'kfree()' into 'bitmap_free()' to keep consistency. While at it, remove a useless 'bitmap_zero()'. Link: https://lore.kernel.org/linux-media/b11f646dda189f490c06bf671f64a2cc0af4d45c.1638397089.git.christophe.jaillet@wanadoo.fr Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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1 changed files with 2 additions and 4 deletions
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@ -48,12 +48,10 @@ __must_check int __media_entity_enum_init(struct media_entity_enum *ent_enum,
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int idx_max)
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{
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idx_max = ALIGN(idx_max, BITS_PER_LONG);
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ent_enum->bmap = kcalloc(idx_max / BITS_PER_LONG, sizeof(long),
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GFP_KERNEL);
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ent_enum->bmap = bitmap_zalloc(idx_max, GFP_KERNEL);
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if (!ent_enum->bmap)
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return -ENOMEM;
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bitmap_zero(ent_enum->bmap, idx_max);
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ent_enum->idx_max = idx_max;
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return 0;
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@ -62,7 +60,7 @@ EXPORT_SYMBOL_GPL(__media_entity_enum_init);
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void media_entity_enum_cleanup(struct media_entity_enum *ent_enum)
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{
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kfree(ent_enum->bmap);
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bitmap_free(ent_enum->bmap);
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}
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EXPORT_SYMBOL_GPL(media_entity_enum_cleanup);
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