mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

thermal/drivers/qcom/lmh: Check for SCM availability at probe 

commit d9d3490c48 upstream.

Up until now, the necessary scm availability check has not been
performed, leading to possible null pointer dereferences (which did
happen for me on RB1).

Fix that.

Fixes: 53bca371cd ("thermal/drivers/qcom: Add support for LMh driver")
Cc: <stable@vger.kernel.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20240308-topic-rb1_lmh-v2-2-bac3914b0fe3@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Konrad Dybcio 2024-03-09 14:15:03 +01:00 committed by Greg Kroah-Hartman
parent 5e0d41aa53
commit 560d69c975
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/thermal/qcom/lmh.c
View File

@ -95,6 +95,9 @@ static int lmh_probe(struct platform_device *pdev)
unsigned int enable_alg;
u32 node_id;
if (!qcom_scm_is_available())
return -EPROBE_DEFER;
lmh_data = devm_kzalloc(dev, sizeof(*lmh_data), GFP_KERNEL);
if (!lmh_data)
return -ENOMEM;