linux-kernel - [PATCH] scsi: csiostor: use *ptr instead of ptr with sizeof

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Date:   Thu, 12 Jan 2023 17:55:57 +0530
From:   Deepak R Varma <drv@...lo.com>
To:     "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Saurabh Singh Sengar <ssengar@...rosoft.com>,
        Praveen Kumar <kumarpraveen@...ux.microsoft.com>
Subject: [PATCH] scsi: csiostor: use *ptr instead of ptr with sizeof

The function csio_enqueue_evt() should be passed the actual length of
the event/message so that it can be fully copied over to the event
queue. Use the sizeof(*ptr) to get the real message length instead of
sizeof(ptr).
Issue identified using the noderef,cocci coccinelle semantic patch.

Signed-off-by: Deepak R Varma <drv@...lo.com>
---
Please note: The change is compile tested only.

 drivers/scsi/csiostor/csio_mb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/csiostor/csio_mb.c b/drivers/scsi/csiostor/csio_mb.c
index 94810b19e747..4df8a4df4408 100644
--- a/drivers/scsi/csiostor/csio_mb.c
+++ b/drivers/scsi/csiostor/csio_mb.c
@@ -1551,7 +1551,7 @@ csio_mb_isr_handler(struct csio_hw *hw)
 		 * Enqueue event to EventQ. Events processing happens
 		 * in Event worker thread context
 		 */
-		if (csio_enqueue_evt(hw, CSIO_EVT_MBX, mbp, sizeof(mbp)))
+		if (csio_enqueue_evt(hw, CSIO_EVT_MBX, mbp, sizeof(*mbp)))
 			CSIO_INC_STATS(hw, n_evt_drop);
 
 		return 0;
-- 
2.34.1