| Message ID | 8bc2ab0f-88ac-42f1-876b-147da525b1eb@moroto.mountain (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | media: atomisp: csi2-bridge: check for negative port values | expand |
Hi Dan, On 8/5/23 08:53, Dan Carpenter wrote: > The atomisp_csi2_get_port() function reads an integer value from the > firmware. We check for invalid positive values but we should also > check for negatives. > > Fixes: 8d28ec7e9145 ("media: atomisp: Add support for v4l2-async sensor registration") > Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> > --- > drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c b/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c > index 46d9f31986c9..0f0ec5d7e49d 100644 > --- a/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c > +++ b/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c > @@ -626,7 +626,7 @@ static int atomisp_csi2_connect_sensor(const struct atomisp_csi2_sensor_config * > goto err_put_adev; > > sensor->port = atomisp_csi2_get_port(adev, clock_num); > - if (sensor->port >= ATOMISP_CAMERA_NR_PORTS) { > + if (sensor->port < 0 || sensor->port >= ATOMISP_CAMERA_NR_PORTS) { > acpi_handle_err(adev->handle, "Invalid port: %d\n", sensor->port); > ret = -EINVAL; > goto err_put_adev; Thank you for the fix, this code has been refactored in -next and now it uses sensor->link rather then sensor->port with sensor now being a 'struct ipu_sensor *' and link being a 'u8' so checking for < 0 no longer is necessary. Regards, Hans
diff --git a/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c b/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c index 46d9f31986c9..0f0ec5d7e49d 100644 --- a/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c +++ b/drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c @@ -626,7 +626,7 @@ static int atomisp_csi2_connect_sensor(const struct atomisp_csi2_sensor_config * goto err_put_adev; sensor->port = atomisp_csi2_get_port(adev, clock_num); - if (sensor->port >= ATOMISP_CAMERA_NR_PORTS) { + if (sensor->port < 0 || sensor->port >= ATOMISP_CAMERA_NR_PORTS) { acpi_handle_err(adev->handle, "Invalid port: %d\n", sensor->port); ret = -EINVAL; goto err_put_adev;
The atomisp_csi2_get_port() function reads an integer value from the firmware. We check for invalid positive values but we should also check for negatives. Fixes: 8d28ec7e9145 ("media: atomisp: Add support for v4l2-async sensor registration") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> --- drivers/staging/media/atomisp/pci/atomisp_csi2_bridge.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)