Messages in this thread | | | Date | Thu, 30 Sep 2021 11:33:43 +0300 | From | Tony Lindgren <> | Subject | Re: drivers/tty/serial/serial_core.c:621 uart_write_room() warn: unsigned 'ret' is never less than zero. |
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* kernel test robot <lkp@intel.com> [210928 11:48]: > tree: https://github.com/0day-ci/linux/commits/Tony-Lindgren/Get-rid-of-pm_runtime_irq_safe-for-8250_omap/20210922-152808 > head: 4456f28c1932b70461a0d8c45d4e863fa9d1be29 > commit: 3c7e2a8d4353263d8c5607fc7eca5e4b009f45eb serial: core: Add new prep_tx for power management > date: 6 days ago > config: i386-randconfig-m021-20210927 (attached as .config) > compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@intel.com> > > New smatch warnings: > drivers/tty/serial/serial_core.c:621 uart_write_room() warn: unsigned 'ret' is never less than zero. > > Old smatch warnings: > drivers/tty/serial/serial_core.c:308 uart_shutdown() error: we previously assumed 'uport' could be null (see line 304) > drivers/tty/serial/serial_core.c:329 uart_shutdown() error: uninitialized symbol 'flags'. > drivers/tty/serial/serial_core.c:2753 iomem_base_show() warn: argument 3 to %lX specifier is cast from pointer
FYI, this patch is no longer needed, updated series posted at [0] below.
Thanks,
Tony
[0] https://lore.kernel.org/linux-kernel/20210930062906.58937-1-tony@atomide.com/T/#m8aa4dc5d38218d17c652d45d3611fc8a696b96c1
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