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net/mlx4: Check retval of mlx4_bitmap_init
If mlx4_bitmap_init fails, mlx4_bitmap_alloc_range will dereference
the NULL pointer (bitmap->table).
Make sure, that mlx4_bitmap_alloc_range called in no error case.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: d57febe1a4
("net/mlx4: Add A0 hybrid steering")
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Peter Kosyh <pkosyh@yandex.ru>
Link: https://lore.kernel.org/r/20221117152806.278072-1-pkosyh@yandex.ru
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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1 changed files with 2 additions and 1 deletions
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@ -697,7 +697,8 @@ static int mlx4_create_zones(struct mlx4_dev *dev,
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err = mlx4_bitmap_init(*bitmap + k, 1,
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MLX4_QP_TABLE_RAW_ETH_SIZE - 1, 0,
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0);
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mlx4_bitmap_alloc_range(*bitmap + k, 1, 1, 0);
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if (!err)
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mlx4_bitmap_alloc_range(*bitmap + k, 1, 1, 0);
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}
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if (err)
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