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author | Álvaro Fernández Rojas <noltari@gmail.com> | 2020-02-29 09:25:20 +0100 |
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committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2020-02-29 12:50:51 +0100 |
commit | a1383655cfaa71609d6236ae0fcf3b6047462b98 (patch) | |
tree | c6f123859e0dfcfaa6c1063eda26f27e208d3cac /target/linux/bcm27xx/patches-5.4/950-0006-Protect-__release_resource-against-resources-without.patch | |
parent | a8aa974a9dfb4cba484dc4c1e4207fd9ec803410 (diff) | |
download | upstream-a1383655cfaa71609d6236ae0fcf3b6047462b98.tar.gz upstream-a1383655cfaa71609d6236ae0fcf3b6047462b98.tar.bz2 upstream-a1383655cfaa71609d6236ae0fcf3b6047462b98.zip |
bcm27xx: add linux 5.4 support
Tested on bcm2710 (Raspberry Pi 3B).
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0006-Protect-__release_resource-against-resources-without.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0006-Protect-__release_resource-against-resources-without.patch | 28 |
1 files changed, 28 insertions, 0 deletions
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 <phil@raspberrypi.org> +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 <phil@raspberrypi.org> +--- + 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; |