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| author | Aleksandr Mishin <amishin@t-argos.ru> | 2024-04-11 14:40:21 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-12 12:03:12 +0300 |
| commit | 11c731386ed82053c2759b6fea1a82ae946e5e0f (patch) | |
| tree | b1770976812d5193686792f6c73afa5383604455 /drivers/thermal | |
| parent | c8d23a7e9bdf0977d085a54731f764652cee98e0 (diff) | |
| download | linux-11c731386ed82053c2759b6fea1a82ae946e5e0f.tar.xz | |
thermal/drivers/tsens: Fix null pointer dereference
[ Upstream commit d998ddc86a27c92140b9f7984ff41e3d1d07a48f ]
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
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/thermal')
| -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 252c5ffdd1b6..fc58db60852a 100644 --- a/drivers/thermal/qcom/tsens.c +++ b/drivers/thermal/qcom/tsens.c @@ -85,7 +85,7 @@ 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; |