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-rw-r--r--sys-kernel/boest-v5.0.15/raspberrypi/0006-Protect-__release_resource-against-resources-without.patch30
1 files changed, 30 insertions, 0 deletions
diff --git a/sys-kernel/boest-v5.0.15/raspberrypi/0006-Protect-__release_resource-against-resources-without.patch b/sys-kernel/boest-v5.0.15/raspberrypi/0006-Protect-__release_resource-against-resources-without.patch
new file mode 100644
index 00000000..ca39c576
--- /dev/null
+++ b/sys-kernel/boest-v5.0.15/raspberrypi/0006-Protect-__release_resource-against-resources-without.patch
@@ -0,0 +1,30 @@
+From 90bd48eef0575230304602e56245965269929c59 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Fri, 13 Mar 2015 12:43:36 +0000
+Subject: [PATCH 006/194] 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(+)
+
+diff --git a/kernel/resource.c b/kernel/resource.c
+index ca7ed5158cff..b7407b33736b 100644
+--- a/kernel/resource.c
++++ b/kernel/resource.c
+@@ -213,6 +213,12 @@ static int __release_resource(struct resource *old, bool release_child)
+ {
+ struct resource *tmp, **p, *chd;
+
++ if (!old->parent) {
++ WARN(old->sibling, "sibling but no parent");
++ if (old->sibling)
++ return -EINVAL;
++ return 0;
++ }
+ p = &old->parent->child;
+ for (;;) {
+ tmp = *p;