In many case, we need to check return value of pm_runtime_get_sync,
but it brings a trouble to the usage counter processing. Many callers
forget to decrease the usage counter when it failed. It has been
discussed a lot[0][1]. So we add a function to deal with the usage
counter for better coding and view. Then, we replace pm_runtime_get_sync
with it in fec_main.c
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 | 12 ++++-----
include/linux/pm_runtime.h | 30 +++++++++++++++++++++++
2 files changed, 35 insertions(+), 7 deletions(-)
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2.25.4
