Merge remote-tracking branches 'regulator/topic/mt6397', 'regulator/topic/of', 'regul...

[cascardo/linux.git] / drivers / nvmem / core.c

diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index 6fd4e5a..9d11d98 100644 (file)
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -70,6 +70,9 @@ static ssize_t bin_attr_nvmem_read(struct file *filp, struct kobject *kobj,
        if (pos >= nvmem->size)
                return 0;
 
+       if (count < nvmem->word_size)
+               return -EINVAL;
+
        if (pos + count > nvmem->size)
                count = nvmem->size - pos;
 
@@ -95,6 +98,9 @@ static ssize_t bin_attr_nvmem_write(struct file *filp, struct kobject *kobj,
        if (pos >= nvmem->size)
                return 0;
 
+       if (count < nvmem->word_size)
+               return -EINVAL;
+
        if (pos + count > nvmem->size)
                count = nvmem->size - pos;