From: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
[ 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@xxxxxxxxxxxx>
c: kbuild test robot <fengguang.wu@xxxxxxxxx>
Fixes: 9ce99b04b5b82fdf11e4c76b60a5f82c1e541297 staging: r8822be: Add phydm mini driver
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
---
drivers/staging/rtlwifi/phydm/phydm_dig.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/staging/rtlwifi/phydm/phydm_dig.c b/drivers/staging/rtlwifi/phydm/phydm_dig.c
index 31a4f3fcad19..c88b9788363a 100644
--- 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 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,
--
2.11.0