diff options
| author | Paul Walmsley <pwalmsley@nvidia.com> | 2013-12-09 18:09:22 -0800 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2014-05-06 14:35:19 -0400 |
| commit | c68789e5346f165441f41a6e09ebfd7caa0c8745 (patch) | |
| tree | e45095f8fca100d9c0eae59cd92a9f3fc1c2048f /drivers/thermal | |
| parent | 9477165ec525d47abb1cb6523698e0cd89d65ddb (diff) | |
| download | linux-c68789e5346f165441f41a6e09ebfd7caa0c8745.tar.bz2 | |
thermal: ti-soc-thermal: clk_round_rate() can return a zero upon error
Treat both negative and zero return values from clk_round_rate() as
errors. This is needed since subsequent patches will convert
clk_round_rate()'s return value to be an unsigned type, rather than a
signed type, since some clock sources can generate rates higher than
(2^31)-1 Hz.
Eventually, when calling clk_round_rate(), only a return value of zero
will be considered a error. All other values will be considered valid
rates. The comparison against values less than 0 is kept to preserve
the correct behavior in the meantime.
This patch also gets rid of a comparison between unsigned and signed
values; a side-benefit.
Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com>
Cc: Eduardo Valentin <eduardo.valentin@ti.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/ti-soc-thermal/ti-bandgap.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c index 3ab12ee359b7..a1271b55103a 100644 --- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c +++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c @@ -1248,7 +1248,7 @@ int ti_bandgap_probe(struct platform_device *pdev) clk_rate = clk_round_rate(bgp->div_clk, bgp->conf->sensors[0].ts_data->max_freq); if (clk_rate < bgp->conf->sensors[0].ts_data->min_freq || - clk_rate == 0xffffffff) { + clk_rate <= 0) { ret = -ENODEV; dev_err(&pdev->dev, "wrong clock rate (%d)\n", clk_rate); goto put_clks; |