On 2018-11-12 4:49 a.m., He Zhe wrote:
On 2018/11/6 00:05, Bruce Ashfield wrote:
On 11/2/18 4:42 AM, He Zhe wrote:
When merging tag 'v4.18.10' into v4.18/standard/base, 05a9931 "of: fix phandle
cache creation for DTs with no phandles" from v4.18.10 introduces an undefined
label "out" and causes the follow compilation error.
drivers/of/base.c: In function 'of_populate_phandle_cache':
drivers/of/base.c:124:3: error: label 'out' used but not defined
goto out;
^~~~
This is because the base of 05a9931 has been modified by b75caf0 "of: allocate /
free phandle cache outside of the devtree_lock".
This patch picks a part of
https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/commit/?h=
linux-4.18.y-rt&id=9866102318991051e5e99085d3c88d6483ee70d4
to fix this error, and can be dropped when rebasing above 9866102.
merged.
Hi Bruce,
This also needs to be merged to linux-yocto-dev RT branches.
Are you sure ? linux-yocto-dev doesn't currently have the 4.19-rt
patches integrated. I thought this was to fixup a merge issue
between standard/base and the rt patch.
Bruce
Thanks,
Zhe
Bruce
Signed-off-by: He Zhe <zhe...@windriver.com>
---
This error affects all arches building preempt-rt kernel with "of" by default.
drivers/of/base.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index ecb495df4aad..49da3726cda5 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -119,14 +119,14 @@ void of_populate_phandle_cache(void)
phandles++;
raw_spin_unlock_irqrestore(&devtree_lock, flags);
+ kfree(shadow);
if (!phandles)
- goto out;
+ return;
cache_entries = roundup_pow_of_two(phandles);
phandle_cache_mask = cache_entries - 1;
- kfree(shadow);
shadow = kcalloc(cache_entries, sizeof(*phandle_cache), GFP_KERNEL);
if (!shadow)
--
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