[PATCH v2] drm/edid: Fix uninitialized variable in drm_cvt_modes()

[kernel test robot]

Hi Lyude,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on drm-intel/for-linux-next]
[also build test WARNING on drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next linus/master v5.10-rc2 next-20201103]
[cannot apply to drm/drm-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Lyude-Paul/drm-edid-Fix-uninitialized-variable-in-drm_cvt_modes/20201104-061621
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: x86_64-randconfig-a011-20201104 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/ca77ba73371e528e2bb9e631817c614717b4f794
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Lyude-Paul/drm-edid-Fix-uninitialized-variable-in-drm_cvt_modes/20201104-061621
        git checkout ca77ba73371e528e2bb9e631817c614717b4f794
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/drm_edid.o: warning: objtool: do_cvt_mode() falls through to next function drm_mode_std.isra.0()

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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