[PATCH 0/3] serial: 8250_aspeed_vuart: fix duplicate __release_region() on unbind

Zev Weiss zev at bewilderbeest.net
Mon May 10 11:42:28 AEST 2021


This series addresses a bug reported by Andrew Jeffery [0] wherein the
aspeed-vuart driver triggers a "Trying to free nonexistent resource"
warning from __release_region() when unbound from a device.  The first
two patches provide some preparatory refactoring and cleanups; the
actual fix is in the final patch.

Joel, note that this series has a dependency on the "generalized DT
properties" series [1] (specifically the second patch), which has been
merged upstream but is not yet in the OpenBMC dev-5.10 tree.

[0] https://github.com/openbmc/linux/issues/203
[1] https://lore.kernel.org/openbmc/20210412034712.16778-1-zev@bewilderbeest.net/

Zev Weiss (3):
  serial: 8250_aspeed_vuart: factor out aspeed_vuart_{read,write}b()
    helper functions
  serial: 8250_aspeed_vuart: initialize vuart->port in
  serial: 8250_aspeed_vuart: use UPF_IOREMAP to set up register mapping

 drivers/tty/serial/8250/8250_aspeed_vuart.c | 50 +++++++++++----------
 1 file changed, 27 insertions(+), 23 deletions(-)


More information about the openbmc mailing list