Many caller forget to decrease the usage counter when call pm_runtime_get_sync. This problem has been discussed in detail, [0][1] and we add gene_pm_runtime_get_sync ops to deal with usage counter for better coding. Then, we replace pm_runtime_get_sync with it in fec_main.c
[0]https://lkml.org/lkml/2020/6/14/88 [1]https://patchwork.ozlabs.org/project/linux-tegra/patch/20200520095148.10995-1-dinghao....@zju.edu.cn/ Zhang Qilong (2): PM: runtime: Add a general runtime get sync operation to deal with usage counter net: fec: Fix reference count leak in fec series ops drivers/net/ethernet/freescale/fec_main.c | 10 +++---- include/linux/pm_runtime.h | 32 +++++++++++++++++++++++ 2 files changed, 37 insertions(+), 5 deletions(-) -- 2.25.4
