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Improve error handling in PSU driver for AS7512-32X platform

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This commit is contained in:
Petro Karashchenko
2017-04-04 01:08:41 +03:00
parent 6bb72f2a71
commit b7a17783fc
1 changed files with 8 additions and 0 deletions
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8
packages/platforms/accton/x86-64/x86-64-accton-as7512-32x/modules/builds/x86-64-accton-as7512-32x-psu.c
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@@ -82,6 +82,10 @@ static ssize_t show_status(struct device *dev, struct device_attribute *da,
struct as7512_32x_psu_data *data = as7512_32x_psu_update_device(dev);
u8 status = 0;
if (!data->valid) {
return -EIO;
}
if (attr->index == PSU_PRESENT) {
status = !(data->status >> ((2 - data->index) + 2) & 0x1);
}
@@ -230,6 +234,7 @@ static struct as7512_32x_psu_data *as7512_32x_psu_update_device(struct device *d
int status;
int power_good = 0;
data->valid = 0;
dev_dbg(&client->dev, "Starting as7512_32x update\n");
/* Read psu status */
@@ -237,6 +242,7 @@ static struct as7512_32x_psu_data *as7512_32x_psu_update_device(struct device *d
if (status < 0) {
dev_dbg(&client->dev, "cpld reg 0x60 err %d\n", status);
goto exit;
}
else {
data->status = status;
@@ -253,6 +259,7 @@ static struct as7512_32x_psu_data *as7512_32x_psu_update_device(struct device *d
if (status < 0) {
data->model_name[0] = '\0';
dev_dbg(&client->dev, "unable to read model name from (0x%x)\n", client->addr);
goto exit;
}
else {
data->model_name[ARRAY_SIZE(data->model_name)-1] = '\0';
@@ -263,6 +270,7 @@ static struct as7512_32x_psu_data *as7512_32x_psu_update_device(struct device *d
data->valid = 1;
}
exit:
mutex_unlock(&data->update_lock);
return data;