On Tue Dec 23 10:02:57 2025 +0000, Ricardo Ribalda wrote:
> As we get ready for kzalloc checking for invalid sizes, let's add
> documentation for the cases where the size is different but valid.
>
> This patch fixes this cocci warning:
> ./platform/qcom/iris/iris_hfi_gen2_command.c:1215:9-25: WARNING: casting
> value returned by memory allocation function to (struct iris_inst *) is
> useless.
>
> Signed-off-by: Ricardo Ribalda <[email protected]>
> Signed-off-by: Bryan O'Donoghue <[email protected]>
> Signed-off-by: Hans Verkuil <[email protected]>
Patch committed.
Thanks,
Hans Verkuil
drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
---
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c
b/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c
index c75c8b9398a2..df31f452b69b 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c
@@ -1296,5 +1296,10 @@ void iris_hfi_gen2_command_ops_init(struct iris_core
*core)
struct iris_inst *iris_hfi_gen2_get_instance(void)
{
- return (struct iris_inst *)kzalloc(sizeof(struct iris_inst_hfi_gen2),
GFP_KERNEL);
+ struct iris_inst_hfi_gen2 *out;
+
+ /* The allocation is intentionally larger than struct iris_inst. */
+ out = kzalloc(sizeof(*out), GFP_KERNEL);
+
+ return &out->inst;
}
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