diff options
author | Rusty Russell <rusty@rustcorp.com.au> | 2009-11-03 02:35:30 -0500 |
---|---|---|
committer | Dave Jones <davej@redhat.com> | 2009-11-17 23:15:04 -0500 |
commit | 8dca15e40889e5d5e9655b03ba79c26200f760ce (patch) | |
tree | 8caf8a37a4eba4e3a07f835f52bfaa9707fc8d72 /arch/x86/kernel | |
parent | e77b89f13a0d48aea70b69976e854f2a2444a519 (diff) |
[CPUFREQ] speedstep-ich: fix error caused by 394122ab144dae4b276d74644a2f11c44a60ac5c
"[CPUFREQ] cpumask: avoid playing with cpus_allowed in speedstep-ich.c"
changed the code to mistakenly pass the current cpu as the "processor"
argument of speedstep_get_frequency(), whereas it should be the type of
the processor.
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14340
Based on a patch by Dave Mueller.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Dominik Brodowski <linux@brodo.de>
Reported-by: Dave Mueller <dave.mueller@gmx.ch>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r-- | arch/x86/kernel/cpu/cpufreq/speedstep-ich.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c index 6911e91fb4f6..3ae5a7a3a500 100644 --- a/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c +++ b/arch/x86/kernel/cpu/cpufreq/speedstep-ich.c | |||
@@ -232,28 +232,23 @@ static unsigned int speedstep_detect_chipset(void) | |||
232 | return 0; | 232 | return 0; |
233 | } | 233 | } |
234 | 234 | ||
235 | struct get_freq_data { | 235 | static void get_freq_data(void *_speed) |
236 | unsigned int speed; | ||
237 | unsigned int processor; | ||
238 | }; | ||
239 | |||
240 | static void get_freq_data(void *_data) | ||
241 | { | 236 | { |
242 | struct get_freq_data *data = _data; | 237 | unsigned int *speed = _speed; |
243 | 238 | ||
244 | data->speed = speedstep_get_frequency(data->processor); | 239 | *speed = speedstep_get_frequency(speedstep_processor); |
245 | } | 240 | } |
246 | 241 | ||
247 | static unsigned int speedstep_get(unsigned int cpu) | 242 | static unsigned int speedstep_get(unsigned int cpu) |
248 | { | 243 | { |
249 | struct get_freq_data data = { .processor = cpu }; | 244 | unsigned int speed; |
250 | 245 | ||
251 | /* You're supposed to ensure CPU is online. */ | 246 | /* You're supposed to ensure CPU is online. */ |
252 | if (smp_call_function_single(cpu, get_freq_data, &data, 1) != 0) | 247 | if (smp_call_function_single(cpu, get_freq_data, &speed, 1) != 0) |
253 | BUG(); | 248 | BUG(); |
254 | 249 | ||
255 | dprintk("detected %u kHz as current frequency\n", data.speed); | 250 | dprintk("detected %u kHz as current frequency\n", speed); |
256 | return data.speed; | 251 | return speed; |
257 | } | 252 | } |
258 | 253 | ||
259 | /** | 254 | /** |