[PATCH] fix sg leak when scsi_execute_async fails

[Mike Christie <michaelc@cs.wisc.edu>]

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.

Patch was made against scsi-misc. Not sure if this should
also go to stable?

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>



diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index a8b05ce..71994ea 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -748,6 +748,7 @@ sg_common_write(Sg_fd * sfp, Sg_request 
 		/*
 		 * most likely out of mem, but could also be a bad map
 		 */
+		sg_finish_rem_req(srp);
 		return -ENOMEM;
 	} else
 		return 0;