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| author | Leonard Crestez <leonard.crestez@nxp.com> | 2019-09-24 10:26:53 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-01-09 10:20:01 +0100 |
| commit | 89dda19e77ce019582ce1d7f19396de6ad846091 (patch) | |
| tree | 6118c7a854c6474d115a7a365caf6e5e2d9d1e0e /drivers | |
| parent | fe8adb0aae33905bdd6b682907d8c48b1857ec99 (diff) | |
| download | linux-stable-89dda19e77ce019582ce1d7f19396de6ad846091.tar.gz linux-stable-89dda19e77ce019582ce1d7f19396de6ad846091.tar.bz2 linux-stable-89dda19e77ce019582ce1d7f19396de6ad846091.zip | |
PM / devfreq: Check NULL governor in available_governors_show
commit d68adc8f85cd757bd33c8d7b2660ad6f16f7f3dc upstream.
The governor is initialized after sysfs attributes become visible so in
theory the governor field can be NULL here.
Fixes: bcf23c79c4e46 ("PM / devfreq: Fix available_governor sysfs")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/devfreq/devfreq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c index ffd2d6b44dfb..c64d20fdc187 100644 --- a/drivers/devfreq/devfreq.c +++ b/drivers/devfreq/devfreq.c @@ -1196,7 +1196,7 @@ static ssize_t available_governors_show(struct device *d, * The devfreq with immutable governor (e.g., passive) shows * only own governor. */ - if (df->governor->immutable) { + if (df->governor && df->governor->immutable) { count = scnprintf(&buf[count], DEVFREQ_NAME_LEN, "%s ", df->governor_name); /* |