linux-kernel - [PATCH v3 2/5] dmaengine: ti: k3-udma: Fix BCDMA for case w/o BCHAN

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Message-ID: <20221213164304.1126945-3-vigneshr@ti.com>
Date:   Tue, 13 Dec 2022 22:13:01 +0530
From:   Vignesh Raghavendra <vigneshr@...com>
To:     Peter Ujfalusi <peter.ujfalusi@...il.com>,
        Vinod Koul <vkoul@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
CC:     <dmaengine@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH v3 2/5] dmaengine: ti: k3-udma: Fix BCDMA for case w/o BCHAN

Reusing loop iterator fails if BCHAN is not present as iterator is
uninitialized

Signed-off-by: Vignesh Raghavendra <vigneshr@...com>
---
 drivers/dma/ti/k3-udma.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index ce8b80bb34d7..aa50d46fa856 100644
--- a/drivers/dma/ti/k3-udma.c
+++ b/drivers/dma/ti/k3-udma.c
@@ -4774,7 +4774,10 @@ static int bcdma_setup_resources(struct udma_dev *ud)
 				irq_res.desc[i].num = rm_res->desc[i].num;
 			}
 		}
+	} else {
+		i = 0;
 	}
+
 	if (ud->tchan_cnt) {
 		rm_res = tisci_rm->rm_ranges[RM_RANGE_TCHAN];
 		if (IS_ERR(rm_res)) {
-- 
2.38.1