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authorMark Brown <broonie@kernel.org>2016-05-02 12:02:09 +0100
committerMark Brown <broonie@kernel.org>2016-05-02 12:02:09 +0100
commit0ce8428ba9ea13098b828d0881e28368a108709c (patch)
tree12cbe5d9c27319b8a18ac9fc9cb44e3c5f35408c /kernel/resource.c
parentASoC: Intel: Atom: fix boot warning (diff)
parentMerge remote-tracking branches 'asoc/fix/rt5640' and 'asoc/fix/wm8962' into asoc-linus (diff)
downloadwireguard-linux-0ce8428ba9ea13098b828d0881e28368a108709c.tar.xz
wireguard-linux-0ce8428ba9ea13098b828d0881e28368a108709c.zip
Merge tag 'asoc-fix-v4.6-rc5' into asoc-intel
ASoC: Fixes for v4.6 This is a fairly large collection of fixes but almost all driver specific ones, especially to the new Intel drivers which have had a lot of recent development. The one core fix is a change to the debugfs code to avoid crashes in some relatively unusual configurations.
Diffstat (limited to '')
-rw-r--r--kernel/resource.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/kernel/resource.c b/kernel/resource.c
index 2e78ead30934..9b5f04404152 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -105,16 +105,25 @@ static int r_show(struct seq_file *m, void *v)
{
struct resource *root = m->private;
struct resource *r = v, *p;
+ unsigned long long start, end;
int width = root->end < 0x10000 ? 4 : 8;
int depth;
for (depth = 0, p = r; depth < MAX_IORES_LEVEL; depth++, p = p->parent)
if (p->parent == root)
break;
+
+ if (file_ns_capable(m->file, &init_user_ns, CAP_SYS_ADMIN)) {
+ start = r->start;
+ end = r->end;
+ } else {
+ start = end = 0;
+ }
+
seq_printf(m, "%*s%0*llx-%0*llx : %s\n",
depth * 2, "",
- width, (unsigned long long) r->start,
- width, (unsigned long long) r->end,
+ width, start,
+ width, end,
r->name ? r->name : "<BAD>");
return 0;
}