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hwmon: epm_adc: Fix potential dereference

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Update epm_adc_psoc_show_in() to fix potential
dereference to adc_code used to store the
PSOC code data.

Change-Id: I7b68f50f89fd38f0ac32f1793720e1af3ef43022
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
This commit is contained in:
Siddartha Mohanadoss 2016-02-24 20:41:24 -08:00 committed by Zhao Wei Liew
parent bc64aa3603
commit be59a66ad1
1 changed files with 5 additions and 5 deletions
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10
drivers/hwmon/epm_adc.c
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@ -1,4 +1,4 @@
/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
/* Copyright (c) 2012, 2016, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -1407,7 +1407,7 @@ static ssize_t epm_adc_psoc_show_in(struct device *dev,
struct epm_psoc_init_resp init_resp;
struct epm_psoc_channel_configure psoc_chan_configure;
struct epm_psoc_get_data psoc_get_meas;
int16_t *adc_code = 0;
int16_t adc_code = 0;
int rc = 0;
rc = epm_adc_psoc_gpio_init(true);
@ -1445,16 +1445,16 @@ static ssize_t epm_adc_psoc_show_in(struct device *dev,
return 0;
}
*adc_code = psoc_get_meas.reading_value;
adc_code = psoc_get_meas.reading_value;
rc = epm_psoc_scale_result(adc_code,
rc = epm_psoc_scale_result(&adc_code,
psoc_chan_configure.channel_num);
if (rc) {
pr_info("Scale result failed\n");
return 0;
}
psoc_get_meas.reading_value = *adc_code;
psoc_get_meas.reading_value = adc_code;
rc = epm_adc_psoc_gpio_init(false);
if (rc) {