diff options
| author | Aleksandr Mishin <amishin@t-argos.ru> | 2024-04-11 14:40:21 +0300 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2024-04-23 13:40:29 +0300 |
| commit | d998ddc86a27c92140b9f7984ff41e3d1d07a48f (patch) | |
| tree | f227334e1efe30c1ef65e24bf34ddcb6a24bd00c /drivers/thermal/qcom | |
| parent | 7954c92ede882b0dfd52a5db90291a4151b44c1a (diff) | |
| download | linux-d998ddc86a27c92140b9f7984ff41e3d1d07a48f.tar.xz | |
thermal/drivers/tsens: Fix null pointer dereference
compute_intercept_slope() is called from calibrate_8960() (in tsens-8960.c)
as compute_intercept_slope(priv, p1, NULL, ONE_PT_CALIB) which lead to null
pointer dereference (if DEBUG or DYNAMIC_DEBUG set).
Fix this bug by adding null pointer check.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: dfc1193d4dbd ("thermal/drivers/tsens: Replace custom 8960 apis with generic apis")
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20240411114021.12203-1-amishin@t-argos.ru
Diffstat (limited to 'drivers/thermal/qcom')
| -rw-r--r-- | drivers/thermal/qcom/tsens.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c index 1c9df4f84641..e76e23026dc8 100644 --- a/drivers/thermal/qcom/tsens.c +++ b/drivers/thermal/qcom/tsens.c @@ -265,7 +265,7 @@ void compute_intercept_slope(struct tsens_priv *priv, u32 *p1, for (i = 0; i < priv->num_sensors; i++) { dev_dbg(priv->dev, "%s: sensor%d - data_point1:%#x data_point2:%#x\n", - __func__, i, p1[i], p2[i]); + __func__, i, p1[i], p2 ? p2[i] : 0); if (!priv->sensor[i].slope) priv->sensor[i].slope = SLOPE_DEFAULT; |