diff options
Diffstat (limited to 'drivers/base/regmap')
| -rw-r--r-- | drivers/base/regmap/regmap-debugfs.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c index f3266334063e..7eb512ba2828 100644 --- a/drivers/base/regmap/regmap-debugfs.c +++ b/drivers/base/regmap/regmap-debugfs.c @@ -40,6 +40,7 @@ static ssize_t regmap_name_read_file(struct file *file, loff_t *ppos) { struct regmap *map = file->private_data; + const char *name = "nodev"; int ret; char *buf; @@ -47,7 +48,10 @@ static ssize_t regmap_name_read_file(struct file *file, if (!buf) return -ENOMEM; - ret = snprintf(buf, PAGE_SIZE, "%s\n", map->dev->driver->name); + if (map->dev && map->dev->driver) + name = map->dev->driver->name; + + ret = snprintf(buf, PAGE_SIZE, "%s\n", name); if (ret < 0) { kfree(buf); return ret; |