linux-kernel - [PATCH] scsi: elx: efct: Fix dma_unmap

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Message-ID: <20250627114117.188480-2-fourier.thomas@gmail.com>
Date: Fri, 27 Jun 2025 13:41:13 +0200
From: Thomas Fourier <fourier.thomas@...il.com>
To: 
Cc: Thomas Fourier <fourier.thomas@...il.com>,
	James Smart <james.smart@...adcom.com>,
	Ram Vegesna <ram.vegesna@...adcom.com>,
	"James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>,
	Bart Van Assche <bvanassche@....org>,
	Peter Wang <peter.wang@...iatek.com>,
	Hannes Reinecke <hare@...e.de>,
	Daniel Wagner <dwagner@...e.de>,
	linux-scsi@...r.kernel.org,
	target-devel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] scsi: elx: efct: Fix dma_unmap_sg() nents value

The dma_unmap_sg() functions should be called with the same nents as the
dma_map_sg(), not the value the map function returned.

Fixes: 692e5d73a811 ("scsi: elx: efct: LIO backend interface routines")
Signed-off-by: Thomas Fourier <fourier.thomas@...il.com>
---
 drivers/scsi/elx/efct/efct_lio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/elx/efct/efct_lio.c b/drivers/scsi/elx/efct/efct_lio.c
index 9ac69356b13e..bd3d489e56ae 100644
--- a/drivers/scsi/elx/efct/efct_lio.c
+++ b/drivers/scsi/elx/efct/efct_lio.c
@@ -382,7 +382,7 @@ efct_lio_sg_unmap(struct efct_io *io)
 		return;
 
 	dma_unmap_sg(&io->efct->pci->dev, cmd->t_data_sg,
-		     ocp->seg_map_cnt, cmd->data_direction);
+		     cmd->t_data_nents, cmd->data_direction);
 	ocp->seg_map_cnt = 0;
 }
 
-- 
2.43.0