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Date: Thu, 7 Dec 2017 14:08:08 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Larry Finger <Larry.Finger@...inger.net>, Sasha Levin <alexander.levin@...izon.com> Subject: [PATCH 4.14 46/75] staging: rtl8822be: Keep array subscript no lower than zero 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Larry Finger <Larry.Finger@...inger.net> [ Upstream commit 43d15c2013130a9fa230c2f5203aca818ae0bb86 ] 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@...inger.net> c: kbuild test robot <fengguang.wu@...el.com> Fixes: 9ce99b04b5b82fdf11e4c76b60a5f82c1e541297 staging: r8822be: Add phydm mini driver Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Signed-off-by: Sasha Levin <alexander.levin@...izon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- drivers/staging/rtlwifi/phydm/phydm_dig.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/staging/rtlwifi/phydm/phydm_dig.c +++ b/drivers/staging/rtlwifi/phydm/phydm_dig.c @@ -490,6 +490,8 @@ void odm_pause_dig(void *dm_void, enum p 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,
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