reduce verboseness for certain scsi error

[Andriy Gapon]

Attached is a proposed patch.
I am not particularly fond of the names. I am also not sure if the same
effect could be achieved by some better means.

The patch works for me and greatly reduces messages pollution when using
a multi-slot card-reader and hald.

P.S. the patch is against sources of 6.2 release.

-- 
Andriy Gapon
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