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net/mlx4_core: Adjust allocation type for buddy->bits

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In preparation for making the kmalloc family of allocators type aware,
we need to make sure that the returned type from the allocation matches
the type of the variable being assigned. (Before, the allocator would
always return "void *", which can be implicitly cast to any pointer type.)

The assigned type is "unsigned long **", but the returned type will be
"long **". These are the same size allocation (pointer size) but the
types do not match. Adjust the allocation type to match the assignment.

Signed-off-by: Kees Cook <kees@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20250426060757.work.865-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Kees Cook
2025-04-25 23:07:58 -07:00
committed by Jakub Kicinski
parent 2eea791a75
commit 01cbf838c7
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/mellanox/mlx4/mr.c
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@@ -106,7 +106,7 @@ static int mlx4_buddy_init(struct mlx4_buddy *buddy, int max_order)
buddy->max_order = max_order;
spin_lock_init(&buddy->lock);
buddy->bits = kcalloc(buddy->max_order + 1, sizeof(long *),
buddy->bits = kcalloc(buddy->max_order + 1, sizeof(*buddy->bits),
GFP_KERNEL);
buddy->num_free = kcalloc(buddy->max_order + 1, sizeof(*buddy->num_free),
GFP_KERNEL);