diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/debug/kdb/kdb_main.c | 2 | ||||
| -rw-r--r-- | kernel/smpboot.c | 2 | ||||
| -rw-r--r-- | kernel/time/ntp.c | 10 | ||||
| -rw-r--r-- | kernel/trace/trace.c | 2 |
4 files changed, 11 insertions, 5 deletions
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c index 00eb8f7fbf41..545241de23bf 100644 --- a/kernel/debug/kdb/kdb_main.c +++ b/kernel/debug/kdb/kdb_main.c @@ -2532,7 +2532,7 @@ static int kdb_summary(int argc, const char **argv) #define K(x) ((x) << (PAGE_SHIFT - 10)) kdb_printf("\nMemTotal: %8lu kB\nMemFree: %8lu kB\n" "Buffers: %8lu kB\n", - val.totalram, val.freeram, val.bufferram); + K(val.totalram), K(val.freeram), K(val.bufferram)); return 0; } diff --git a/kernel/smpboot.c b/kernel/smpboot.c index 02fc5c933673..7020eecb398b 100644 --- a/kernel/smpboot.c +++ b/kernel/smpboot.c @@ -279,6 +279,7 @@ int smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread) unsigned int cpu; int ret = 0; + get_online_cpus(); mutex_lock(&smpboot_threads_lock); for_each_online_cpu(cpu) { ret = __smpboot_create_thread(plug_thread, cpu); @@ -291,6 +292,7 @@ int smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread) list_add(&plug_thread->list, &hotplug_threads); out: mutex_unlock(&smpboot_threads_lock); + put_online_cpus(); return ret; } EXPORT_SYMBOL_GPL(smpboot_register_percpu_thread); diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index 28db9bedc857..6211d5d6d465 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -631,10 +631,14 @@ int ntp_validate_timex(struct timex *txc) if ((txc->modes & ADJ_SETOFFSET) && (!capable(CAP_SYS_TIME))) return -EPERM; - if (txc->modes & ADJ_FREQUENCY) { - if (LONG_MIN / PPM_SCALE > txc->freq) + /* + * Check for potential multiplication overflows that can + * only happen on 64-bit systems: + */ + if ((txc->modes & ADJ_FREQUENCY) && (BITS_PER_LONG == 64)) { + if (LLONG_MIN / PPM_SCALE > txc->freq) return -EINVAL; - if (LONG_MAX / PPM_SCALE < txc->freq) + if (LLONG_MAX / PPM_SCALE < txc->freq) return -EINVAL; } diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 18cdf91b2f85..8d7e8098e768 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -4588,7 +4588,7 @@ tracing_mark_write(struct file *filp, const char __user *ubuf, *fpos += written; out_unlock: - for (i = 0; i < nr_pages; i++){ + for (i = nr_pages - 1; i >= 0; i--) { kunmap_atomic(map_page[i]); put_page(pages[i]); } |