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hwmon: (nct7802) Fix integer overflow seen when writing voltage limits

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Writing a large value into a voltage limit attribute can result
in an overflow due to an auto-conversion from unsigned long to
unsigned int.

Cc: Constantine Shulyupin <[email protected]>
Reviewed-by: Jean Delvare <[email protected]>
Cc: [email protected] # v4.1+
Signed-off-by: Guenter Roeck <[email protected]>
This commit is contained in:
Guenter Roeck 2015-07-04 13:23:42 -07:00
commit 9200bc4c28
1 changed files with 1 additions and 1 deletions
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2
drivers/hwmon/nct7802.c
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@ -195,7 +195,7 @@ abort:
}
static int nct7802_write_voltage(struct nct7802_data *data, int nr, int index,
unsigned int voltage)
unsigned long voltage)
{
int shift = 8 - REG_VOLTAGE_LIMIT_MSB_SHIFT[index - 1][nr];
int err;