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Date: Mon, 19 Mar 2007 10:22:18 +0100 From: Adrian Bunk <bunk@...sta.de> To: Eric.Moore@....com Cc: mpt_linux_developer@....com, linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org Subject: drivers/message/fusion/mptscsih.c: inconsequent NULL checking The Coverity checker spotted the following inconsequent NULL checking in drivers/message/fusion/mptscsih.c: <-- snip --> ... int mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *)) { ... if (vdev && (vdev->vtarget->tflags & MPT_TARGET_FLAGS_Q_YES) && (SCpnt->device->tagged_supported)) { scsictl = scsidir | MPI_SCSIIO_CONTROL_SIMPLEQ; } else { scsictl = scsidir | MPI_SCSIIO_CONTROL_UNTAGGED; } /* Use the above information to set up the message frame */ pScsiReq->TargetID = (u8) vdev->vtarget->id; ... <-- snip --> vdev is first checked but later dereferenced unconditionally. cu Adrian -- "Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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