brcm2708: update linux 4.4 patches to latest version

As usual these patches were extracted and rebased from the raspberry pi repo:
https://github.com/raspberrypi/linux/tree/rpi-4.4.y

- led1 can't be controlled on rpi-3 for linux 4.4, remove it.
- Fix modules.mk typos.

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

1 files changed, 39 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.4/0587-drm-vc4-Fix-OOPSes-from-trying-to-cache-a-partially-.patch b/target/linux/brcm2708/patches-4.4/0587-drm-vc4-Fix-OOPSes-from-trying-to-cache-a-partially-.patch
new file mode 100644
index 0000000..c2381cb
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0587-drm-vc4-Fix-OOPSes-from-trying-to-cache-a-partially-.patch
@@ -0,0 +1,39 @@
+From 73042261439a2d73e4e7b711de55a8a135725739 Mon Sep 17 00:00:00 2001
+From: Eric Anholt <eric@anholt.net>
+Date: Thu, 9 Feb 2017 09:23:34 -0800
+Subject: [PATCH] drm/vc4: Fix OOPSes from trying to cache a partially
+ constructed BO.
+
+If a CMA allocation failed, the partially constructed BO would be
+unreferenced through the normal path, and we might choose to put it in
+the BO cache.  If we then reused it before it expired from the cache,
+the kernel would OOPS.
+
+Signed-off-by: Eric Anholt <eric@anholt.net>
+Fixes: c826a6e10644 ("drm/vc4: Add a BO cache.")
+---
+ drivers/gpu/drm/vc4/vc4_bo.c | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c
+index ce8a5fd..d7474dd 100644
+--- a/drivers/gpu/drm/vc4/vc4_bo.c
++++ b/drivers/gpu/drm/vc4/vc4_bo.c
+@@ -334,6 +334,14 @@ void vc4_free_object(struct drm_gem_object *gem_bo)
+ 		goto out;
+ 	}
+ 
++	/* If this object was partially constructed but CMA allocation
++	 * had failed, just free it.
++	 */
++	if (!bo->base.vaddr) {
++		vc4_bo_destroy(bo);
++		goto out;
++	}
++
+ 	cache_list = vc4_get_cache_list_for_size(dev, gem_bo->size);
+ 	if (!cache_list) {
+ 		vc4_bo_destroy(bo);
+-- 
+2.1.4
+