diff options
| author | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-11-06 20:25:18 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-11 09:44:14 -0800 |
| commit | d7ded4428c788fb09e5587afa4a5d244e0be33b8 (patch) | |
| tree | 9cc9f2f7e04f6a51d5d9b263d6a72e2ef5699c6d /drivers/hwmon | |
| parent | 27393d86d5d7b7b4abd0b340ed8b1691e13b2461 (diff) | |
hwmon: (w83627ehf) Fix broken driver init
commit bfa02b0da66965caf46e441270af87edda4fea14 upstream.
Commit 2265cef2 (hwmon: (w83627ehf) Properly report PECI and AMD-SI
sensor types) results in kernel panic if data->temp_label was not
initialized.
The problem was found with chip W83627DHG-P.
Add check if data->temp->label was set before use.
Based on incomplete patch by Alexander Beregalov.
Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Tested-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/w83627ehf.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 7be763df2d80..4b2fc50c84fe 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -1756,12 +1756,15 @@ static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data, diode = 0x70; } for (i = 0; i < 3; i++) { - const char *label = data->temp_label[data->temp_src[i]]; + const char *label = NULL; + + if (data->temp_label) + label = data->temp_label[data->temp_src[i]]; /* Digital source overrides analog type */ - if (strncmp(label, "PECI", 4) == 0) + if (label && strncmp(label, "PECI", 4) == 0) data->temp_type[i] = 6; - else if (strncmp(label, "AMD", 3) == 0) + else if (label && strncmp(label, "AMD", 3) == 0) data->temp_type[i] = 5; else if ((tmp & (0x02 << i))) data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 3; |