linux-kernel - [PATCH 3/5] Staging: hv: storvsc: Fix a bug in storvsc_command

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Message-Id: <1322744360-13067-3-git-send-email-kys@microsoft.com>
Date:	Thu,  1 Dec 2011 04:59:18 -0800
From:	"K. Y. Srinivasan" <kys@...rosoft.com>
To:	gregkh@...e.de, linux-kernel@...r.kernel.org,
	devel@...uxdriverproject.org, virtualization@...ts.osdl.org,
	ohering@...e.com, James.Bottomley@...senPartnership.com,
	hch@...radead.org, linux-scsi@...r.kernel.org
Cc:	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>
Subject: [PATCH 3/5] Staging: hv: storvsc: Fix a bug in storvsc_command_completion()

Fix a bug in storvsc_command_completion() that leaks memory when scatter/gather
lists are used on the "write" side.

Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
---
 drivers/staging/hv/storvsc_drv.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index 14ecb69..8dafe52 100644
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -1123,13 +1123,12 @@ static void storvsc_command_completion(struct hv_storvsc_request *request)
 
 	vm_srb = &request->vstor_packet.vm_srb;
 	if (cmd_request->bounce_sgl_count) {
-		if (vm_srb->data_in == READ_TYPE) {
+		if (vm_srb->data_in == READ_TYPE)
 			copy_from_bounce_buffer(scsi_sglist(scmnd),
 					cmd_request->bounce_sgl,
 					scsi_sg_count(scmnd));
-			destroy_bounce_buffer(cmd_request->bounce_sgl,
+		destroy_bounce_buffer(cmd_request->bounce_sgl,
 					cmd_request->bounce_sgl_count);
-		}
 	}
 
 	/*
-- 
1.7.4.1

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