From caf19d38607108304cd8cc67ed21378017f69e8a Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Thu, 22 Jul 2010 09:36:51 +0900 Subject: [PATCH] [SCSI] sg: fix bio leak with a detached device After blk_rq_map_user is successful, if we find that a device is unavailable (was detached), we must call blk_end_request_all to free bio(s) before blk_rq_unmap_user and blk_put_request. Reported-by: "Dailey, Nate" Signed-off-by: FUJITA Tomonori Tested-by: "Dailey, Nate" Signed-off-by: James Bottomley --- drivers/scsi/sg.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index ef752b2..d454909 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -729,6 +729,8 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp, return k; /* probably out of space --> ENOMEM */ } if (sdp->detached) { + if (srp->bio) + blk_end_request_all(srp->rq, -EIO); sg_finish_rem_req(srp); return -ENODEV; } -- 2.7.4