bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0729-dma-buf-fix-resource-leak-on-ENOTTY-error-return-pat.patch b/target/linux/bcm27xx/patches-5.4/950-0729-dma-buf-fix-resource-leak-on-ENOTTY-error-return-pat.patch
new file mode 100644
index 0000000000..89b66956e0
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0729-dma-buf-fix-resource-leak-on-ENOTTY-error-return-pat.patch
@@ -0,0 +1,34 @@
+From 0960432c8261efb05bcf5ba6d8fe13c8293086a9 Mon Sep 17 00:00:00 2001
+From: Colin Ian King <colin.king@canonical.com>
+Date: Mon, 16 Dec 2019 16:10:59 +0000
+Subject: [PATCH] dma-buf: fix resource leak on -ENOTTY error return
+ path
+
+Commit f9d3b2c600075d1f79efcd5cdb1718c2f554c0f9 upstream.
+
+The -ENOTTY error return path does not free the allocated
+kdata as it returns directly. Fix this by returning via the
+error handling label err.
+
+Addresses-Coverity: ("Resource leak")
+Fixes: c02a81fba74f ("dma-buf: Add dma-buf heaps framework")
+Signed-off-by: Colin Ian King <colin.king@canonical.com>
+Acked-by: John Stultz <john.stultz@linaro.org>
+Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
+Link: https://patchwork.freedesktop.org/patch/msgid/20191216161059.269492-1-colin.king@canonical.com
+---
+ drivers/dma-buf/dma-heap.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+--- a/drivers/dma-buf/dma-heap.c
++++ b/drivers/dma-buf/dma-heap.c
+@@ -157,7 +157,8 @@ static long dma_heap_ioctl(struct file *
+ 		ret = dma_heap_ioctl_allocate(file, kdata);
+ 		break;
+ 	default:
+-		return -ENOTTY;
++		ret = -ENOTTY;
++		goto err;
+ 	}
+ 
+ 	if (copy_to_user((void __user *)arg, kdata, out_size) != 0)