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| author | Maria Yu <[email protected]> | 2023-11-15 10:28:24 +0000 |
|---|---|---|
| committer | Linus Walleij <[email protected]> | 2023-11-15 10:40:15 +0000 |
| commit | 4198a9b571065978632276264e01d71d68000ac5 (patch) | |
| tree | 616aec36d2ab563b97ac9842660ee8e192808d17 /net/unix/unix_bpf.c | |
| parent | pinctrl: cy8c95x0: Fix doc warning (diff) | |
| download | kernel-4198a9b571065978632276264e01d71d68000ac5.tar.gz kernel-4198a9b571065978632276264e01d71d68000ac5.zip | |
pinctrl: avoid reload of p state in list iteration
When in the list_for_each_entry iteration, reload of p->state->settings
with a local setting from old_state will turn the list iteration into an
infinite loop.
The typical symptom when the issue happens, will be a printk message like:
"not freeing pin xx (xxx) as part of deactivating group xxx - it is
already used for some other setting".
This is a compiler-dependent problem, one instance occurred using Clang
version 10.0 on the arm64 architecture with linux version 4.19.
Fixes: 6e5e959dde0d ("pinctrl: API changes to support multiple states per device")
Signed-off-by: Maria Yu <[email protected]>
Cc: <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Linus Walleij <[email protected]>
Diffstat (limited to 'net/unix/unix_bpf.c')
0 files changed, 0 insertions, 0 deletions