scsi: core: Fix shost->cmd_per_lun calculation in scsi_add_host_with_dma()
commit 50b6cb35 upstream. After commit ea2f0f77 ("scsi: core: Cap scsi_host cmd_per_lun at can_queue"), a 416-CPU VM running on Hyper-V hangs during boot because the hv_storvsc driver sets scsi_driver.can_queue to an integer value that exceeds SHRT_MAX, and hence scsi_add_host_with_dma() sets shost->cmd_per_lun to a negative "short" value. Use min_t(int, ...) to work around the issue. Link: https://lore.kernel.org/r/20211008043546.6006-1-decui@microsoft.com Fixes: ea2f0f77 ("scsi: core: Cap scsi_host cmd_per_lun at can_queue") Cc: stable@vger.kernel.org Reviewed-by:Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by:
Ming Lei <ming.lei@redhat.com> Reviewed-by:
John Garry <john.garry@huawei.com> Signed-off-by:
Dexuan Cui <decui@microsoft.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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c58654f3
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