From a1383655cfaa71609d6236ae0fcf3b6047462b98 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Sat, 29 Feb 2020 09:25:20 +0100 Subject: bcm27xx: add linux 5.4 support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Tested on bcm2710 (Raspberry Pi 3B). Signed-off-by: Álvaro Fernández Rojas --- ...elease_resource-against-resources-without.patch | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 target/linux/bcm27xx/patches-5.4/950-0006-Protect-__release_resource-against-resources-without.patch (limited to 'target/linux/bcm27xx/patches-5.4/950-0006-Protect-__release_resource-against-resources-without.patch') diff --git a/target/linux/bcm27xx/patches-5.4/950-0006-Protect-__release_resource-against-resources-without.patch b/target/linux/bcm27xx/patches-5.4/950-0006-Protect-__release_resource-against-resources-without.patch new file mode 100644 index 0000000000..5b7bed7883 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0006-Protect-__release_resource-against-resources-without.patch @@ -0,0 +1,28 @@ +From f60fc28e618bb4830dc626435d45169b9c659311 Mon Sep 17 00:00:00 2001 +From: Phil Elwell +Date: Fri, 13 Mar 2015 12:43:36 +0000 +Subject: [PATCH] Protect __release_resource against resources without + parents + +Without this patch, removing a device tree overlay can crash here. + +Signed-off-by: Phil Elwell +--- + kernel/resource.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +--- a/kernel/resource.c ++++ b/kernel/resource.c +@@ -214,6 +214,12 @@ static int __release_resource(struct res + { + 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; -- cgit v1.2.3