diff options
| -rw-r--r-- | drivers/nvmem/core.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index 398ea7f54826..78aa06a578d0 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -970,7 +970,8 @@ static int __nvmem_cell_read(struct nvmem_device *nvmem, if (cell->bit_offset || cell->nbits) nvmem_shift_read_buffer_in_place(cell, buf); - *len = cell->bytes; + if (len) + *len = cell->bytes; return 0; } @@ -979,7 +980,8 @@ static int __nvmem_cell_read(struct nvmem_device *nvmem, * nvmem_cell_read() - Read a given nvmem cell * * @cell: nvmem cell to be read. - * @len: pointer to length of cell which will be populated on successful read. + * @len: pointer to length of cell which will be populated on successful read; + * can be NULL. * * Return: ERR_PTR() on error or a valid pointer to a buffer on success. The * buffer should be freed by the consumer with a kfree(). |