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SubjectRe: drivers/tty/serial/pmac_zilog.c:255:36: sparse: sparse: context imbalance in 'pmz_receive_chars' - unexpected unlock
On Thu, Jul 23, 2020 at 05:29:14PM +0800, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: d15be546031cf65a0fc34879beca02fd90fe7ac7
> commit: 08d5470308ac3598e7709d08b8979ce6e9de8da2 serial: core: fix sysrq overhead regression
> date: 4 weeks ago
> config: m68k-randconfig-s032-20200723 (attached as .config)
> compiler: m68k-linux-gcc (GCC) 9.3.0
> reproduce:
> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # apt-get install sparse
> # sparse version: v0.6.2-93-g4c6cbe55-dirty
> git checkout 08d5470308ac3598e7709d08b8979ce6e9de8da2
> # save the attached .config to linux build tree
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=m68k
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@intel.com>
>
>
> sparse warnings: (new ones prefixed by >>)
>
> >> drivers/tty/serial/pmac_zilog.c:255:36: sparse: sparse: context imbalance in 'pmz_receive_chars' - unexpected unlock

This warning is far from new, but let's add the missing annotation
nonetheless:

https://lore.kernel.org/r/20200723121423.24217-1-johan@kernel.org

Johan

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