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mfd: tps65911-comparator: Fix an off by one bug

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The COMP1 and COMP2 elements are in 0 and 1 respectively so this code is
accessing the wrong elements and one space beyond the end of the array.

The "id" variable is never COMP (0) so that code can be removed.

Fixes: 6851ad3ab3 ("TPS65911: Comparator: Add comparator driver")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Lee Jones 2018-05-01 10:26:59 +01:00
parent 7169483ce4
commit 1768391c36
1 changed files with 2 additions and 9 deletions
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11
drivers/mfd/tps65911-comparator.c
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@ -22,9 +22,8 @@
#include <linux/gpio.h>
#include <linux/mfd/tps65910.h>
#define COMP 0
#define COMP1 1
#define COMP2 2
#define COMP1 0
#define COMP2 1
/* Comparator 1 voltage selection table in millivolts */
static const u16 COMP_VSEL_TABLE[] = {
@ -63,9 +62,6 @@ static int comp_threshold_set(struct tps65910 *tps65910, int id, int voltage)
int ret;
u8 index = 0, val;
if (id == COMP)
return 0;
while (curr_voltage < tps_comp.uV_max) {
curr_voltage = tps_comp.vsel_table[index];
if (curr_voltage >= voltage)
@ -89,9 +85,6 @@ static int comp_threshold_get(struct tps65910 *tps65910, int id)
unsigned int val;
int ret;
if (id == COMP)
return 0;
ret = tps65910_reg_read(tps65910, tps_comp.reg, &val);
if (ret < 0)
return ret;