brcm2708: update to latest patches from RPi foundation

[openwrt/staging/dedeckeh.git] / target / linux / brcm2708 / patches-4.19 / 950-0445-bcm2835-sdhost-Fix-DMA-channel-leak-on-error-remove.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0445-bcm2835-sdhost-Fix-DMA-channel-leak-on-error-remove.patch b/target/linux/brcm2708/patches-4.19/950-0445-bcm2835-sdhost-Fix-DMA-channel-leak-on-error-remove.patch
new file mode 100644 (file)
index 0000000..13ea94a
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0445-bcm2835-sdhost-Fix-DMA-channel-leak-on-error-remove.patch
@@ -0,0 +1,31 @@
+From 73623c76c8bc8c41a4afefc1eee84dfc5979d652 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 12 Jun 2019 20:45:17 +0100
+Subject: [PATCH] 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);
+