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authorMark Brown <broonie@kernel.org>2016-05-04 14:41:51 +0100
committerMark Brown <broonie@kernel.org>2016-05-04 14:41:51 +0100
commit3d277b177918cd26215732fc23af0783ab4b37dd (patch)
tree2033b4f517415e9e68eb066fa073b79a3884e03d /kernel/resource.c
parentf55532a0c0b8bb6148f4e07853b876ef73bc69ca (diff)
parent02da2d72174c61988eb4456b53f405e3ebdebce4 (diff)
Merge tag 'v4.6-rc5' into spi-rockchip
Linux 4.6-rc5
Diffstat (limited to 'kernel/resource.c')
-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;
}