[SCSI] aacraid: Fix down_interruptible() to check the return value correctly

On Apr 21, 2008, at 8:42 PM, Yinghai Lu wrote:
> bisected to:
>
> commit e6990c64
> Author: Mark Salyzyn <Mark_Salyzyn@adaptec.com>
> Date:   Mon Apr 14 14:20:16 2008 -0400
>
>    [SCSI] aacraid: Fix down_interruptible() to check the return value

The return value for down_interruptible was incorrectly checked!
updated patch enclosed.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>