openwrt/target/linux/brcm2708/patches-4.19/950-0517-bcm2835-sdhost-Fix-DMA-channel-leak-on-error-remove.patch
Álvaro Fernández Rojas 2340c646e6 brcm2708: update to latest patches from RPi foundation
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2019-08-27 11:10:01 +02:00

32 lines
966 B
Diff

From 0e3b70d74a8ab5187a05e48dfec974f650cfbd83 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Wed, 12 Jun 2019 20:45:17 +0100
Subject: [PATCH 517/773] bcm2835-sdhost: Fix DMA channel leak on error/remove
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
drivers/mmc/host/bcm2835-sdhost.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/mmc/host/bcm2835-sdhost.c
+++ b/drivers/mmc/host/bcm2835-sdhost.c
@@ -2154,6 +2154,8 @@ static int bcm2835_sdhost_probe(struct p
err:
pr_debug("bcm2835_sdhost_probe -> err %d\n", ret);
+ if (host->dma_chan_rxtx)
+ dma_release_channel(host->dma_chan_rxtx);
mmc_free_host(mmc);
return ret;
@@ -2174,7 +2176,8 @@ static int bcm2835_sdhost_remove(struct
del_timer_sync(&host->timer);
tasklet_kill(&host->finish_tasklet);
-
+ if (host->dma_chan_rxtx)
+ dma_release_channel(host->dma_chan_rxtx);
mmc_free_host(host->mmc);
platform_set_drvdata(pdev, NULL);