mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-07 03:18:31 +00:00
thermal: fix cpu_cooling max_level behavior
As per Documentation/thermal/sysfs-api.txt, max_level is an index, not a counter. Thus, in case a CPU has 3 valid frequencies, max_level is expected to be 2, for instance. The current code makes max_level == number of valid frequencies, which is bogus. This patch fix the cpu_cooling device by ranging max_level properly. Reported-by: Carlos Hernandez <ceh@ti.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
parent
06475b556c
commit
1c9573a40c
1 changed files with 4 additions and 2 deletions
|
@ -173,6 +173,8 @@ static int get_property(unsigned int cpu, unsigned long input,
|
|||
freq = table[i].frequency;
|
||||
max_level++;
|
||||
}
|
||||
/* max_level is an index, not a counter */
|
||||
max_level--;
|
||||
|
||||
/* get max level */
|
||||
if (property == GET_MAXL) {
|
||||
|
@ -181,7 +183,7 @@ static int get_property(unsigned int cpu, unsigned long input,
|
|||
}
|
||||
|
||||
if (property == GET_FREQ)
|
||||
level = descend ? input : (max_level - input - 1);
|
||||
level = descend ? input : (max_level - input);
|
||||
|
||||
for (i = 0, j = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
|
||||
/* ignore invalid entry */
|
||||
|
@ -197,7 +199,7 @@ static int get_property(unsigned int cpu, unsigned long input,
|
|||
|
||||
if (property == GET_LEVEL && (unsigned int)input == freq) {
|
||||
/* get level by frequency */
|
||||
*output = descend ? j : (max_level - j - 1);
|
||||
*output = descend ? j : (max_level - j);
|
||||
return 0;
|
||||
}
|
||||
if (property == GET_FREQ && level == j) {
|
||||
|
|
Loading…
Reference in a new issue