diff options
| author | Sudip Mukherjee <sudipm.mukherjee@gmail.com> | 2020-04-24 19:19:44 +0300 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2020-04-29 17:38:58 +0300 |
| commit | 7440f518dad9d861d76c64956641eeddd3586f75 (patch) | |
| tree | 000e1d14685866ff11385de8627d35a8b3ebc6dc /drivers/thermal | |
| parent | 770ae40cd6d23eb331572b8913f51dc715c9d460 (diff) | |
| download | linux-7440f518dad9d861d76c64956641eeddd3586f75.tar.xz | |
thermal/drivers/ti-soc-thermal: Avoid dereferencing ERR_PTR
On error the function ti_bandgap_get_sensor_data() returns the error
code in ERR_PTR() but we only checked if the return value is NULL or
not. And, so we can dereference an error code inside ERR_PTR.
While at it, convert a check to IS_ERR_OR_NULL.
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200424161944.6044-1-sudipm.mukherjee@gmail.com
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/ti-soc-thermal/ti-thermal-common.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c index d3e959d01606..85776db4bf34 100644 --- a/drivers/thermal/ti-soc-thermal/ti-thermal-common.c +++ b/drivers/thermal/ti-soc-thermal/ti-thermal-common.c @@ -169,7 +169,7 @@ int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, data = ti_bandgap_get_sensor_data(bgp, id); - if (!data || IS_ERR(data)) + if (!IS_ERR_OR_NULL(data)) data = ti_thermal_build_data(bgp, id); if (!data) @@ -196,7 +196,7 @@ int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id) data = ti_bandgap_get_sensor_data(bgp, id); - if (data && data->ti_thermal) { + if (!IS_ERR_OR_NULL(data) && data->ti_thermal) { if (data->our_zone) thermal_zone_device_unregister(data->ti_thermal); } @@ -262,7 +262,7 @@ int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id) data = ti_bandgap_get_sensor_data(bgp, id); - if (data) { + if (!IS_ERR_OR_NULL(data)) { cpufreq_cooling_unregister(data->cool_dev); if (data->policy) cpufreq_cpu_put(data->policy); |