linux-kernel - [PATCH] scsi: hisi_sas: add a check of devm_add

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Date:   Mon, 27 Feb 2023 11:10:30 +0800
From:   void0red <void0red@...il.com>
To:     chenxiang66@...ilicon.com
Cc:     jejb@...ux.ibm.com, martin.petersen@...cle.com,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Kang Chen <void0red@...il.com>
Subject: [PATCH] scsi: hisi_sas: add a check of devm_add_action

From: Kang Chen <void0red@...il.com>

devm_add_action may fails, check it in the caller of
interrupt_preinit_v3_hw

Signed-off-by: Kang Chen <void0red@...il.com>
---
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 0c3fcb807..a63279f55 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -2495,8 +2495,7 @@ static int interrupt_preinit_v3_hw(struct hisi_hba *hisi_hba)
 	hisi_hba->cq_nvecs = vectors - BASE_VECTORS_V3_HW;
 	shost->nr_hw_queues = hisi_hba->cq_nvecs;
 
-	devm_add_action(&pdev->dev, hisi_sas_v3_free_vectors, pdev);
-	return 0;
+	return devm_add_action(&pdev->dev, hisi_sas_v3_free_vectors, pdev);
 }
 
 static int interrupt_init_v3_hw(struct hisi_hba *hisi_hba)
-- 
2.34.1