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Devicetree fixes for 4.19, part 2: 

- Fix a regression on systems having a DT without any phandles which
   happens on a PowerMac G3.
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Merge tag 'devicetree-fixes-for-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull DeviceTree fix from Rob Herring:
 "One regression for a 20 year old PowerMac:

   - Fix a regression on systems having a DT without any phandles which
     happens on a PowerMac G3"

* tag 'devicetree-fixes-for-4.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of: fix phandle cache creation for DTs with no phandles
This commit is contained in:
Linus Torvalds 2018-09-14 13:03:17 -10:00
parent d7c0268090 e54192b48d
commit 090b75bcba
1 changed files with 3 additions and 0 deletions
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3
drivers/of/base.c
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@ -140,6 +140,9 @@ void of_populate_phandle_cache(void)
if (np->phandle && np->phandle != OF_PHANDLE_ILLEGAL)
phandles++;
if (!phandles)
goto out;
cache_entries = roundup_pow_of_two(phandles);
phandle_cache_mask = cache_entries - 1;