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| Started by | Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
|---|---|
| First post | 2016-03-02 02:40 +0100 |
| Last post | 2016-03-02 02:40 +0100 |
| Articles | 1 — 1 participant |
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[PATCH 3.14 115/130] hwmon: (ads1015) Handle negative conversion values correctly Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-03-02 02:40 +0100
| From | Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
|---|---|
| Date | 2016-03-02 02:40 +0100 |
| Subject | [PATCH 3.14 115/130] hwmon: (ads1015) Handle negative conversion values correctly |
| Message-ID | <r83VF-sE-41@gated-at.bofh.it> |
3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Peter Rosin <peda@axentia.se> commit acc146943957d7418a6846f06e029b2c5e87e0d5 upstream. Make the divisor signed as DIV_ROUND_CLOSEST is undefined for negative dividends when the divisor is unsigned. Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/hwmon/ads1015.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/hwmon/ads1015.c +++ b/drivers/hwmon/ads1015.c @@ -126,7 +126,7 @@ static int ads1015_reg_to_mv(struct i2c_ struct ads1015_data *data = i2c_get_clientdata(client); unsigned int pga = data->channel_data[channel].pga; int fullscale = fullscale_table[pga]; - const unsigned mask = data->id == ads1115 ? 0x7fff : 0x7ff0; + const int mask = data->id == ads1115 ? 0x7fff : 0x7ff0; return DIV_ROUND_CLOSEST(reg * fullscale, mask); }
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