[SCSI] fix sg leak when scsi_execute_async fails

Doug found a bug where if scsi_execute_async fails, we are leaking
sg resources. scsi_do_req never failed so we did not have to handle
that case before.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index fcf9243..bfa86b3 100644 (file)
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -748,6 +748,7 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
                /*
                 * most likely out of mem, but could also be a bad map
                 */
+               sg_finish_rem_req(srp);
                return -ENOMEM;
        } else
                return 0;