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scsi: hisi_sas: use safe BITS_PER_BYTE for slot tag size calculation
The memory calculation for the tags bitmap should use BITS_PER_BYTE macro instead of coincidental same value of sizeof(unsigned long). Signed-off-by: John Garry <john.garry@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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@ -1309,7 +1309,7 @@ static int hisi_sas_alloc(struct hisi_hba *hisi_hba, struct Scsi_Host *shost)
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memset(hisi_hba->breakpoint, 0, s);
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hisi_hba->slot_index_count = max_command_entries;
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s = hisi_hba->slot_index_count / sizeof(unsigned long);
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s = hisi_hba->slot_index_count / BITS_PER_BYTE;
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hisi_hba->slot_index_tags = devm_kzalloc(dev, s, GFP_KERNEL);
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if (!hisi_hba->slot_index_tags)
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goto err_out;
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