CID 1399830: Dereference before null check in rt_control().
Closes #4251
---
bsps/shared/grlib/1553/b1553rt.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/bsps/shared/grlib/1553/b1553rt.c b/bsps/shared/grlib/1553/b1553rt.c
index d7257e4..df72ada 100644
--- a/bsps/shared/grlib/1553/b1553rt.c
+++ b/bsps/shared/grlib/1553/b1553rt.c
@@ -619,7 +619,7 @@ static rtems_device_driver
rt_write(rtems_device_major_number major, rtems_devic
static rtems_device_driver rt_control(rtems_device_major_number major,
rtems_device_minor_number minor, void *arg)
{
rtems_libio_ioctl_args_t *ioarg = (rtems_libio_ioctl_args_t *) arg;
- unsigned int *data = ioarg->buffer;
+ unsigned int *data;
rt_priv *rt;
struct drvmgr_dev *dev;
@@ -636,6 +636,8 @@ static rtems_device_driver
rt_control(rtems_device_major_number major, rtems_dev
return RTEMS_INVALID_NAME;
}
+ data = ioarg->buffer;
+
ioarg->ioctl_return = 0;
switch (ioarg->command) {
--
1.8.3.1
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