bcm27xx: add linux 5.4 support

Tested on bcm2710 (Raspberry Pi 3B).

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

1 files changed, 62 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0399-driver-char-rpivid-Clean-up-error-handling-use-of-ER.patch b/target/linux/bcm27xx/patches-5.4/950-0399-driver-char-rpivid-Clean-up-error-handling-use-of-ER.patch
new file mode 100644
index 0000000000..b61e2c5cfe
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0399-driver-char-rpivid-Clean-up-error-handling-use-of-ER.patch
@@ -0,0 +1,62 @@
+From 8b95d0d18fcfb940fb0d171663ce5c93b8fb0024 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.com>
+Date: Tue, 21 Jan 2020 16:24:45 +0000
+Subject: [PATCH] driver: char: rpivid: Clean up error handling use of
+ ERR_PTR/IS_ERR
+
+The driver used an unnecessary intermediate void* variable so it
+only called ERR_PTR once to convert to the error value.
+
+Switch to converting as the error arises to remove these intermediate
+variables.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
+---
+ drivers/char/broadcom/rpivid-mem.c | 17 +++++++----------
+ 1 file changed, 7 insertions(+), 10 deletions(-)
+
+--- a/drivers/char/broadcom/rpivid-mem.c
++++ b/drivers/char/broadcom/rpivid-mem.c
+@@ -130,10 +130,8 @@ static const struct of_device_id rpivid_
+ static int rpivid_mem_probe(struct platform_device *pdev)
+ {
+ 	int err;
+-	void *ptr_err;
+ 	const struct of_device_id *id;
+ 	struct device *dev = &pdev->dev;
+-	struct device *rpivid_mem_dev;
+ 	struct resource *ioresource;
+ 	struct rpivid_mem_priv *priv;
+ 
+@@ -183,16 +181,16 @@ static int rpivid_mem_probe(struct platf
+ 	/* Create sysfs entries */
+ 
+ 	priv->class = class_create(THIS_MODULE, priv->name);
+-	ptr_err = priv->class;
+-	if (IS_ERR(ptr_err))
++	if (IS_ERR(priv->class)) {
++		err = PTR_ERR(priv->class);
+ 		goto failed_class_create;
++	}
+ 
+-	rpivid_mem_dev = device_create(priv->class, NULL,
+-					priv->devid, NULL,
+-					priv->name);
+-	ptr_err = rpivid_mem_dev;
+-	if (IS_ERR(ptr_err))
++	dev = device_create(priv->class, NULL, priv->devid, NULL, priv->name);
++	if (IS_ERR(dev)) {
++		err = PTR_ERR(dev);
+ 		goto failed_device_create;
++	}
+ 
+ 	/* Legacy alias */
+ 	{
+@@ -217,7 +215,6 @@ failed_device_create:
+ 	class_destroy(priv->class);
+ failed_class_create:
+ 	cdev_del(&priv->rpivid_mem_cdev);
+-	err = PTR_ERR(ptr_err);
+ failed_cdev_add:
+ 	unregister_chrdev_region(priv->devid, 1);
+ failed_alloc_chrdev: