From: Vignesh Raghavendra <vigneshr@ti.com>
Date: Tue, 13 Dec 2022 16:43:01 +0000 (+0530)
Subject: dmaengine: ti: k3-udma: Fix BCDMA for case w/o BCHAN
X-Git-Tag: v6.3-rc1~98^2~30
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4c7f3ca1745e18e2da9a83373c26eaf6f51c0505;p=thirdparty%2Flinux.git

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@ti.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Link: https://lore.kernel.org/r/20221213164304.1126945-3-vigneshr@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
---

diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c
index ce8b80bb34d7d..aa50d46fa856b 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)) {