From: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
In case optarg n is not given return/exit
Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
Acked-by: Jonathan Cameron <jic23@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/staging/iio/Documentation/generic_buffer.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/staging/iio/Documentation/generic_buffer.c b/drivers/staging/iio/Documentation/generic_buffer.c
index 771b236..3cc18ab 100644
--- a/drivers/staging/iio/Documentation/generic_buffer.c
+++ b/drivers/staging/iio/Documentation/generic_buffer.c
@@ -168,6 +168,9 @@ int main(int argc, char **argv)
}
}
+ if (device_name == NULL)
+ return -1;
+
/* Find the device requested */
dev_num = find_type_by_name(device_name, "device");
if (dev_num < 0) {
--
1.7.4.1
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