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Date: Fri, 25 Apr 2014 13:09:50 +0200 From: Christoph Hellwig <hch@....de> To: Linus Torvalds <torvalds@...ux-foundation.org>, James Bottomley <JBottomley@...allels.com> Cc: linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org Subject: [PATCH 2/2] scsi: don't reference freed command in scsi_prep_return In the kill case of scsi_prep_return we have to release our device reference, but we do this trying to reference the just freed command. Use the local sdev pointer instead. Reported-by: Joe Lawrence <joe.lawrence@...atus.com> Signed-off-by: Christoph Hellwig <hch@....de> --- drivers/scsi/scsi_lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 54eff6a..7fa54fe 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -1274,7 +1274,7 @@ int scsi_prep_return(struct request_queue *q, struct request *req, int ret) struct scsi_cmnd *cmd = req->special; scsi_release_buffers(cmd); scsi_put_command(cmd); - put_device(&cmd->device->sdev_gendev); + put_device(&sdev->sdev_gendev); req->special = NULL; } break; -- 1.7.10.4 -- 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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