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[S390] cio: handle ssch() return codes correctly.

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ssch() has two classes of return codes:
- condition codes (0-3) which need to be translated to Linux
  error codes
- Linux error codes (-EIO on exceptions) which should be passed
  to the caller (instead of erronously being handled like
  condition code 3)

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Cornelia Huck 2008-09-09 12:38:58 +02:00 committed by Martin Schwidefsky
parent a2164b8174
commit c91ebe4961
1 changed files with 3 additions and 1 deletions
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4
drivers/s390/cio/cio.c
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@ -208,8 +208,10 @@ cio_start_key (struct subchannel *sch, /* subchannel structure */
case 1: /* status pending */ case 1: /* status pending */
case 2: /* busy */ case 2: /* busy */
return -EBUSY; return -EBUSY;
default: /* device/path not operational */ case 3: /* device/path not operational */
return cio_start_handle_notoper(sch, lpm); return cio_start_handle_notoper(sch, lpm);
default:
return ccode;
} }
} }