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, 27 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0382-driver-char-rpivid-Fix-access-to-freed-memory.patch b/target/linux/bcm27xx/patches-5.4/950-0382-driver-char-rpivid-Fix-access-to-freed-memory.patch
new file mode 100644
index 0000000000..67147fa58d
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0382-driver-char-rpivid-Fix-access-to-freed-memory.patch
@@ -0,0 +1,27 @@
+From be492eed9f4724798a7b85cf8779772dc901f986 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 21 Jan 2020 16:44:14 +0000
+Subject: [PATCH] driver: char: rpivid: Fix access to freed memory
+
+The error path during probe frees the private memory block, and
+then promptly dereferences it to log an error message.
+
+Use the base device instead of the pointer to it in the private
+structure.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/char/broadcom/rpivid-mem.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/char/broadcom/rpivid-mem.c
++++ b/drivers/char/broadcom/rpivid-mem.c
+@@ -229,7 +229,7 @@ failed_alloc_chrdev:
+ failed_get_resource:
+ 	kfree(priv);
+ failed_inst_alloc:
+-	dev_err(priv->dev, "could not load rpivid_mem");
++	dev_err(&pdev->dev, "could not load rpivid_mem");
+ 	return err;
+ }
+