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authorÁlvaro Fernández Rojas <noltari@gmail.com>2016-04-07 21:25:10 +0200
committerÁlvaro Fernández Rojas <noltari@gmail.com>2016-04-07 21:25:10 +0200
commita8d4d71c41ff0158c2026cac5981e39702167da9 (patch)
tree0c54ec3eb59f5bab6aa7318d14c92ff875412202 /target/linux/brcm2708/patches-4.4/0180-Protect-__release_resource-against-resources-without.patch
parent59e0e88c22007fd77ee9c6c8e02a689889a5f597 (diff)
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brcm2708: update to latest version
As usual these patches were extracted from the raspberry pi repo: https://github.com/raspberrypi/linux/commits/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0180-Protect-__release_resource-against-resources-without.patch')
-rw-r--r--target/linux/brcm2708/patches-4.4/0180-Protect-__release_resource-against-resources-without.patch28
1 files changed, 28 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0180-Protect-__release_resource-against-resources-without.patch b/target/linux/brcm2708/patches-4.4/0180-Protect-__release_resource-against-resources-without.patch
new file mode 100644
index 0000000..936cd00
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0180-Protect-__release_resource-against-resources-without.patch
@@ -0,0 +1,28 @@
+From c841449374b2acd024ae8971bbd2474c6ba27309 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 13 Mar 2015 12:43:36 +0000
+Subject: [PATCH 180/232] Protect __release_resource against resources without
+ parents
+
+Without this patch, removing a device tree overlay can crash here.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ kernel/resource.c | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+--- a/kernel/resource.c
++++ b/kernel/resource.c
+@@ -237,6 +237,12 @@ static int __release_resource(struct res
+ {
+ struct resource *tmp, **p;
+
++ if (!old->parent) {
++ WARN(old->sibling, "sibling but no parent");
++ if (old->sibling)
++ return -EINVAL;
++ return 0;
++ }
+ p = &old->parent->child;
+ for (;;) {
+ tmp = *p;