diff options
| -rw-r--r-- | drivers/firmware/memmap.c | 4 | ||||
| -rw-r--r-- | drivers/video/backlight/lm3639_bl.c | 4 | ||||
| -rw-r--r-- | include/linux/coredump.h | 1 | ||||
| -rw-r--r-- | include/linux/pid_namespace.h | 8 | ||||
| -rw-r--r-- | kernel/pid_namespace.c | 21 | ||||
| -rw-r--r-- | kernel/sys.c | 12 | ||||
| -rw-r--r-- | lib/dma-debug.c | 4 | ||||
| -rw-r--r-- | mm/compaction.c | 2 |
8 files changed, 30 insertions, 26 deletions
diff --git a/drivers/firmware/memmap.c b/drivers/firmware/memmap.c index c1cdc923666..90723e65b08 100644 --- a/drivers/firmware/memmap.c +++ b/drivers/firmware/memmap.c @@ -237,7 +237,7 @@ static ssize_t memmap_attr_show(struct kobject *kobj, * firmware_map_add() or firmware_map_add_early() afterwards, the entries * are not added to sysfs. */ -static int __init memmap_init(void) +static int __init firmware_memmap_init(void) { struct firmware_map_entry *entry; @@ -246,5 +246,5 @@ static int __init memmap_init(void) return 0; } -late_initcall(memmap_init); +late_initcall(firmware_memmap_init); diff --git a/drivers/video/backlight/lm3639_bl.c b/drivers/video/backlight/lm3639_bl.c index c6915c6c3cd..585949b5705 100644 --- a/drivers/video/backlight/lm3639_bl.c +++ b/drivers/video/backlight/lm3639_bl.c @@ -206,11 +206,11 @@ static ssize_t lm3639_bled_mode_store(struct device *dev, out: dev_err(pchip->dev, "%s:i2c access fail to register\n", __func__); - return size; + return ret; out_input: dev_err(pchip->dev, "%s:input conversion fail\n", __func__); - return size; + return ret; } diff --git a/include/linux/coredump.h b/include/linux/coredump.h index 1775eb8acc0..1d7399314a8 100644 --- a/include/linux/coredump.h +++ b/include/linux/coredump.h @@ -4,6 +4,7 @@ #include <linux/types.h> #include <linux/mm.h> #include <linux/fs.h> +#include <asm/siginfo.h> /* * These are the only things you should do on a core-file: use only these diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h index 00474b04714..65e3e87eacc 100644 --- a/include/linux/pid_namespace.h +++ b/include/linux/pid_namespace.h @@ -47,15 +47,9 @@ static inline struct pid_namespace *get_pid_ns(struct pid_namespace *ns) } extern struct pid_namespace *copy_pid_ns(unsigned long flags, struct pid_namespace *ns); -extern void free_pid_ns(struct kref *kref); extern void zap_pid_ns_processes(struct pid_namespace *pid_ns); extern int reboot_pid_ns(struct pid_namespace *pid_ns, int cmd); - -static inline void put_pid_ns(struct pid_namespace *ns) -{ - if (ns != &init_pid_ns) - kref_put(&ns->kref, free_pid_ns); -} +extern void put_pid_ns(struct pid_namespace *ns); #else /* !CONFIG_PID_NS */ #include <linux/err.h> diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index 478bad2745e..eb00be20581 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -133,19 +133,26 @@ struct pid_namespace *copy_pid_ns(unsigned long flags, struct pid_namespace *old return create_pid_namespace(old_ns); } -void free_pid_ns(struct kref *kref) +static void free_pid_ns(struct kref *kref) { - struct pid_namespace *ns, *parent; + struct pid_namespace *ns; ns = container_of(kref, struct pid_namespace, kref); - - parent = ns->parent; destroy_pid_namespace(ns); +} - if (parent != NULL) - put_pid_ns(parent); +void put_pid_ns(struct pid_namespace *ns) +{ + struct pid_namespace *parent; + + while (ns != &init_pid_ns) { + parent = ns->parent; + if (!kref_put(&ns->kref, free_pid_ns)) + break; + ns = parent; + } } -EXPORT_SYMBOL_GPL(free_pid_ns); +EXPORT_SYMBOL_GPL(put_pid_ns); void zap_pid_ns_processes(struct pid_namespace *pid_ns) { diff --git a/kernel/sys.c b/kernel/sys.c index c5cb5b99cb8..01865c6fb6a 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -1265,15 +1265,16 @@ DECLARE_RWSEM(uts_sem); * Work around broken programs that cannot handle "Linux 3.0". * Instead we map 3.x to 2.6.40+x, so e.g. 3.0 would be 2.6.40 */ -static int override_release(char __user *release, int len) +static int override_release(char __user *release, size_t len) { int ret = 0; - char buf[65]; if (current->personality & UNAME26) { - char *rest = UTS_RELEASE; + const char *rest = UTS_RELEASE; + char buf[65] = { 0 }; int ndots = 0; unsigned v; + size_t copy; while (*rest) { if (*rest == '.' && ++ndots >= 3) @@ -1283,8 +1284,9 @@ static int override_release(char __user *release, int len) rest++; } v = ((LINUX_VERSION_CODE >> 8) & 0xff) + 40; - snprintf(buf, len, "2.6.%u%s", v, rest); - ret = copy_to_user(release, buf, len); + copy = min(sizeof(buf), max_t(size_t, 1, len)); + copy = scnprintf(buf, copy, "2.6.%u%s", v, rest); + ret = copy_to_user(release, buf, copy + 1); } return ret; } diff --git a/lib/dma-debug.c b/lib/dma-debug.c index b9087bff008..d84beb994f3 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -264,7 +264,7 @@ static struct dma_debug_entry *__hash_bucket_find(struct hash_bucket *bucket, match_fn match) { struct dma_debug_entry *entry, *ret = NULL; - int matches = 0, match_lvl, last_lvl = 0; + int matches = 0, match_lvl, last_lvl = -1; list_for_each_entry(entry, &bucket->list, list) { if (!match(ref, entry)) @@ -293,7 +293,7 @@ static struct dma_debug_entry *__hash_bucket_find(struct hash_bucket *bucket, } else if (match_lvl > last_lvl) { /* * We found an entry that fits better then the - * previous one + * previous one or it is the 1st match. */ last_lvl = match_lvl; ret = entry; diff --git a/mm/compaction.c b/mm/compaction.c index 2c4ce17651d..9eef55838fc 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -346,7 +346,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, * pages requested were isolated. If there were any failures, 0 is * returned and CMA will fail. */ - if (strict && nr_strict_required != total_isolated) + if (strict && nr_strict_required > total_isolated) total_isolated = 0; if (locked) |