media: stm32: dcmipp: correct error handling in dcmipp_create_subdevs

Correct error handling within the dcmipp_create_subdevs by properly
decrementing the i counter when releasing the subdevs.

Fixes: 28e0f377 ("media: stm32-dcmipp: STM32 DCMIPP camera interface driver")
Cc: stable@vger.kernel.org
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
[hverkuil: correct the indices: it's [i], not [i - 1].]

drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-core.c

@@ -202,8 +202,8 @@ static int dcmipp_create_subdevs(struct dcmipp_device *dcmipp)
 	return 0;
 
 err_init_entity:
-	while (i > 0)
-		dcmipp->pipe_cfg->ents[i - 1].release(dcmipp->entity[i - 1]);
+	while (i-- > 0)
+		dcmipp->pipe_cfg->ents[i].release(dcmipp->entity[i]);
 	return ret;
 }