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cpufreq: speedstep-lib: Use int type to store negative error codes 

Change the return type of the speedstep_get_freqs() function from unsigned
int to int because it may return negative error codes.  For the same
reason, change the 'ret' variables to int type as well.

No effect on runtime.

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://patch.msgid.link/20250902114545.651661-4-rongqianfeng@vivo.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Qianfeng Rong 2025-09-02 19:45:44 +08:00 committed by Rafael J. Wysocki
parent b49d708495
commit e5e9b7bd86
2 changed files with 11 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/cpufreq/speedstep-lib.c
View File

@ -378,16 +378,16 @@ EXPORT_SYMBOL_GPL(speedstep_detect_processor);
* DETECT SPEEDSTEP SPEEDS *
*********************************************************************/
unsigned int speedstep_get_freqs(enum speedstep_processor processor,
unsigned int *low_speed,
unsigned int *high_speed,
unsigned int *transition_latency,
void (*set_state) (unsigned int state))
int speedstep_get_freqs(enum speedstep_processor processor,
unsigned int *low_speed,
unsigned int *high_speed,
unsigned int *transition_latency,
void (*set_state)(unsigned int state))
{
unsigned int prev_speed;
unsigned int ret = 0;
unsigned long flags;
ktime_t tv1, tv2;
int ret = 0;
if ((!processor) || (!low_speed) || (!high_speed) || (!set_state))
return -EINVAL;

10
drivers/cpufreq/speedstep-lib.h
View File

@ -41,8 +41,8 @@ extern unsigned int speedstep_get_frequency(enum speedstep_processor processor);
* SPEEDSTEP_LOW; the second argument is zero so that no
* cpufreq_notify_transition calls are initiated.
*/
extern unsigned int speedstep_get_freqs(enum speedstep_processor processor,
unsigned int *low_speed,
unsigned int *high_speed,
unsigned int *transition_latency,
void (*set_state) (unsigned int state));
extern int speedstep_get_freqs(enum speedstep_processor processor,
unsigned int *low_speed,
unsigned int *high_speed,
unsigned int *transition_latency,
void (*set_state)(unsigned int state));