tree: git://linuxtv.org/sailus/media_tree.git master head: 54ee11761885407056f4ca60309739e2db6b02dc commit: 1277bce40e9cfe5831808780228d1b1cf645e1d4 [26/27] media: v4l: async: Don't set notifier's V4L2 device if registering fails config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20240309/202403090851.cCiC7PN1-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240309/202403090851.cCiC7PN1-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202403090851.cCiC7PN1-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/media/v4l2-core/v4l2-async.c: In function 'v4l2_async_nf_register': >> drivers/media/v4l2-core/v4l2-async.c:623:13: warning: unused variable 'ret' [-Wunused-variable] 623 | int ret; | ^~~ vim +/ret +623 drivers/media/v4l2-core/v4l2-async.c a3620cb48d303f Sakari Ailus 2017-09-24 620 b8ec754ae4c563 Sakari Ailus 2023-02-23 621 int v4l2_async_nf_register(struct v4l2_async_notifier *notifier) a3620cb48d303f Sakari Ailus 2017-09-24 622 { a3620cb48d303f Sakari Ailus 2017-09-24 @623 int ret; a3620cb48d303f Sakari Ailus 2017-09-24 624 b8ec754ae4c563 Sakari Ailus 2023-02-23 625 if (WARN_ON(!notifier->v4l2_dev == !notifier->sd)) a3620cb48d303f Sakari Ailus 2017-09-24 626 return -EINVAL; a3620cb48d303f Sakari Ailus 2017-09-24 627 1277bce40e9cfe Sakari Ailus 2024-03-08 628 return __v4l2_async_nf_register(notifier); a3620cb48d303f Sakari Ailus 2017-09-24 629 } 3c8c153914812a Sakari Ailus 2021-03-05 630 EXPORT_SYMBOL(v4l2_async_nf_register); e9e310491bdbc8 Guennadi Liakhovetski 2013-01-08 631 :::::: The code at line 623 was first introduced by commit :::::: a3620cb48d303f07160694c00d9c1c8f0ea96690 media: v4l: async: Prepare for async sub-device notifiers :::::: TO: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> :::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
