diff options
| -rw-r--r-- | drivers/base/regmap/regmap-irq.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index edf88f20cbce..6299a50a5960 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -10,13 +10,13 @@ * published by the Free Software Foundation. */ -#include <linux/export.h> #include <linux/device.h> -#include <linux/regmap.h> -#include <linux/irq.h> +#include <linux/export.h> #include <linux/interrupt.h> +#include <linux/irq.h> #include <linux/irqdomain.h> #include <linux/pm_runtime.h> +#include <linux/regmap.h> #include <linux/slab.h> #include "internal.h" @@ -347,6 +347,9 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, int ret = -ENOMEM; u32 reg; + if (chip->num_regs <= 0) + return -EINVAL; + for (i = 0; i < chip->num_irqs; i++) { if (chip->irqs[i].reg_offset % map->reg_stride) return -EINVAL; |