diff options
Diffstat (limited to 'drivers/iio/industrialio-backend.c')
| -rw-r--r-- | drivers/iio/industrialio-backend.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-backend.c index fb34a8e4d04e..a3abcdeb6281 100644 --- a/drivers/iio/industrialio-backend.c +++ b/drivers/iio/industrialio-backend.c @@ -155,10 +155,15 @@ static ssize_t iio_backend_debugfs_write_reg(struct file *file, ssize_t rc; int ret; - rc = simple_write_to_buffer(buf, sizeof(buf), ppos, userbuf, count); + if (count >= sizeof(buf)) + return -ENOSPC; + + rc = simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, userbuf, count); if (rc < 0) return rc; + buf[rc] = '\0'; + ret = sscanf(buf, "%i %i", &back->cached_reg_addr, &val); switch (ret) { |