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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-01-30 11:44:08 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-01-30 11:44:08 -0500
commitad2e62a038c392a3453712fbb42fd71faacc203a (patch)
tree7dfbe54f308cf9da77232450dd5676fdbe5c9c3c
parent51e6ed23fc95c3e710d8a98717924ccb2571aa66 (diff)
parent3453c8478a228d9b374956ea99256163f1a0c88c (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Remove unneeded errata workaround from p4-clockmod. [CPUFREQ] check sysfs_create_link return value
-rw-r--r--arch/i386/kernel/cpu/cpufreq/p4-clockmod.c9
-rw-r--r--drivers/cpufreq/cpufreq.c17
2 files changed, 13 insertions, 13 deletions
diff --git a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
index bec50170b75a..4786fedca6eb 100644
--- a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
+++ b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
@@ -51,7 +51,6 @@ enum {
51 51
52 52
53static int has_N44_O17_errata[NR_CPUS]; 53static int has_N44_O17_errata[NR_CPUS];
54static int has_N60_errata[NR_CPUS];
55static unsigned int stock_freq; 54static unsigned int stock_freq;
56static struct cpufreq_driver p4clockmod_driver; 55static struct cpufreq_driver p4clockmod_driver;
57static unsigned int cpufreq_p4_get(unsigned int cpu); 56static unsigned int cpufreq_p4_get(unsigned int cpu);
@@ -224,12 +223,6 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
224 case 0x0f12: 223 case 0x0f12:
225 has_N44_O17_errata[policy->cpu] = 1; 224 has_N44_O17_errata[policy->cpu] = 1;
226 dprintk("has errata -- disabling low frequencies\n"); 225 dprintk("has errata -- disabling low frequencies\n");
227 break;
228
229 case 0x0f29:
230 has_N60_errata[policy->cpu] = 1;
231 dprintk("has errata -- disabling frequencies lower than 2ghz\n");
232 break;
233 } 226 }
234 227
235 /* get max frequency */ 228 /* get max frequency */
@@ -241,8 +234,6 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
241 for (i=1; (p4clockmod_table[i].frequency != CPUFREQ_TABLE_END); i++) { 234 for (i=1; (p4clockmod_table[i].frequency != CPUFREQ_TABLE_END); i++) {
242 if ((i<2) && (has_N44_O17_errata[policy->cpu])) 235 if ((i<2) && (has_N44_O17_errata[policy->cpu]))
243 p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID; 236 p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID;
244 else if (has_N60_errata[policy->cpu] && ((stock_freq * i)/8) < 2000000)
245 p4clockmod_table[i].frequency = CPUFREQ_ENTRY_INVALID;
246 else 237 else
247 p4clockmod_table[i].frequency = (stock_freq * i)/8; 238 p4clockmod_table[i].frequency = (stock_freq * i)/8;
248 } 239 }
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index d91330432ba2..a45cc89e387a 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -722,8 +722,13 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
722 spin_unlock_irqrestore(&cpufreq_driver_lock, flags); 722 spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
723 723
724 dprintk("CPU already managed, adding link\n"); 724 dprintk("CPU already managed, adding link\n");
725 sysfs_create_link(&sys_dev->kobj, 725 ret = sysfs_create_link(&sys_dev->kobj,
726 &managed_policy->kobj, "cpufreq"); 726 &managed_policy->kobj,
727 "cpufreq");
728 if (ret) {
729 mutex_unlock(&policy->lock);
730 goto err_out_driver_exit;
731 }
727 732
728 cpufreq_debug_enable_ratelimit(); 733 cpufreq_debug_enable_ratelimit();
729 mutex_unlock(&policy->lock); 734 mutex_unlock(&policy->lock);
@@ -770,8 +775,12 @@ static int cpufreq_add_dev (struct sys_device * sys_dev)
770 dprintk("CPU %u already managed, adding link\n", j); 775 dprintk("CPU %u already managed, adding link\n", j);
771 cpufreq_cpu_get(cpu); 776 cpufreq_cpu_get(cpu);
772 cpu_sys_dev = get_cpu_sysdev(j); 777 cpu_sys_dev = get_cpu_sysdev(j);
773 sysfs_create_link(&cpu_sys_dev->kobj, &policy->kobj, 778 ret = sysfs_create_link(&cpu_sys_dev->kobj, &policy->kobj,
774 "cpufreq"); 779 "cpufreq");
780 if (ret) {
781 mutex_unlock(&policy->lock);
782 goto err_out_unregister;
783 }
775 } 784 }
776 785
777 policy->governor = NULL; /* to assure that the starting sequence is 786 policy->governor = NULL; /* to assure that the starting sequence is