diff options
| -rw-r--r-- | drivers/base/dd.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 59113543a154..2f00d1d5b414 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -68,6 +68,12 @@ static char async_probe_drv_names[ASYNC_DRV_NAMES_MAX_LEN]; */ static bool defer_all_probes; +static void __device_set_deferred_probe_reason(const struct device *dev, char *reason) +{ + kfree(dev->p->deferred_probe_reason); + dev->p->deferred_probe_reason = reason; +} + /* * deferred_probe_work_func() - Retry probing devices in the active list. */ @@ -96,8 +102,7 @@ static void deferred_probe_work_func(struct work_struct *work) get_device(dev); - kfree(dev->p->deferred_probe_reason); - dev->p->deferred_probe_reason = NULL; + __device_set_deferred_probe_reason(dev, NULL); /* * Drop the mutex while probing each device; the probe path may @@ -142,8 +147,7 @@ void driver_deferred_probe_del(struct device *dev) if (!list_empty(&dev->p->deferred_probe)) { dev_dbg(dev, "Removed from deferred list\n"); list_del_init(&dev->p->deferred_probe); - kfree(dev->p->deferred_probe_reason); - dev->p->deferred_probe_reason = NULL; + __device_set_deferred_probe_reason(dev, NULL); } mutex_unlock(&deferred_probe_mutex); } @@ -222,11 +226,12 @@ void device_unblock_probing(void) void device_set_deferred_probe_reason(const struct device *dev, struct va_format *vaf) { const char *drv = dev_driver_string(dev); + char *reason; mutex_lock(&deferred_probe_mutex); - kfree(dev->p->deferred_probe_reason); - dev->p->deferred_probe_reason = kasprintf(GFP_KERNEL, "%s: %pV", drv, vaf); + reason = kasprintf(GFP_KERNEL, "%s: %pV", drv, vaf); + __device_set_deferred_probe_reason(dev, reason); mutex_unlock(&deferred_probe_mutex); } |