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| author |   Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> | 2017-03-29 20:43:53 +0200 |
|---|---|---|
| committer |   Eduardo Valentin <edubezval@gmail.com> | 2017-03-30 21:42:42 -0700 |
| commit | 97dad1f1d2b3f2a2a77551849357b7ac38b0b6ff (patch) | |
| tree | 5813468429ce345662f3be484856d8de1414dbfd /drivers/thermal | |
| parent | thermal: rcar_gen3_thermal: check that TSC exists before memory allocation (diff) | |
| download | linux-dev-97dad1f1d2b3f2a2a77551849357b7ac38b0b6ff.tar.xz linux-dev-97dad1f1d2b3f2a2a77551849357b7ac38b0b6ff.zip | |
thermal: rcar_gen3_thermal: record and check number of TSCs found
Record how many TSCs are found in struct rcar_gen3_thermal_priv, this is
needed to be able to add hardware interrupts for trip points later. Also
add a check to make sure at least one TSC is found.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/rcar_gen3_thermal.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c index 9b6bc03dd142..4a08b35533dc 100644 --- a/drivers/thermal/rcar_gen3_thermal.c +++ b/drivers/thermal/rcar_gen3_thermal.c @@ -75,6 +75,7 @@ struct rcar_gen3_thermal_tsc { struct rcar_gen3_thermal_priv { struct rcar_gen3_thermal_tsc *tscs[TSC_MAX_NUM]; + unsigned int num_tscs; }; struct rcar_gen3_thermal_data { @@ -307,6 +308,13 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev) tsc->zone = zone; } + priv->num_tscs = i; + + if (!priv->num_tscs) { + ret = -ENODEV; + goto error_unregister; + } + return 0; error_unregister: |