Commit 43d15c20 authored Sep 23, 2017 by Larry Finger Committed by Greg Kroah-Hartman Oct 18, 2017

staging: rtl8822be: Keep array subscript no lower than zero



The kbuild test robot reports the following:
   drivers/staging//rtlwifi/phydm/phydm_dig.c: In function 'odm_pause_dig':
   drivers/staging//rtlwifi/phydm/phydm_dig.c:494:45: warning: array subscript is below array bounds [-Warray-bounds]
      odm_write_dig(dm, dig_tab->pause_dig_value[max_level]);

This condition is caused when a loop falls through. The fix is to pin
max_level to be >= 0.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
c: kbuild test robot <fengguang.wu@intel.com>
Fixes: 9ce99b04 staging: r8822be: Add phydm mini driver
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 78cd0ddc

drivers/staging/rtlwifi/phydm/phydm_dig.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -490,6 +490,8 @@ void odm_pause_dig(void *dm_void, enum phydm_pause_type pause_type,
		break;
		}

		/* pin max_level to be >= 0 */
		max_level = max_t(s8, 0, max_level);
		/* write IGI of lower level */
		odm_write_dig(dm, dig_tab->pause_dig_value[max_level]);
		ODM_RT_TRACE(dm, ODM_COMP_DIG,