Uninitialized channel pointer causes segmentation fault when we call free(channel) during cleanup() with no channels initialized. This happens when you exit early for usage errors. Initialize the pointer to NULL when it is declared.
Signed-off-by: Alison Schofield <[email protected]> Cc: Daniel Baluta <[email protected]> --- tools/iio/iio_generic_buffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/iio/iio_generic_buffer.c b/tools/iio/iio_generic_buffer.c index 0e8a1f7..ae68bf0 100644 --- a/tools/iio/iio_generic_buffer.c +++ b/tools/iio/iio_generic_buffer.c @@ -348,7 +348,7 @@ int main(int argc, char **argv) int notrigger = 0; char *dummy; - struct iio_channel_info *channels; + struct iio_channel_info *channels = NULL; register_cleanup(); -- 2.1.4
