[PATCH v2] drm/amdgpu: fix uninitialized scalar variable warning

[Huang, Tim]

[AMD Official Use Only - General]

-----Original Message-----
From: Koenig, Christian <Christian.Koenig at amd.com>
Sent: Tuesday, April 23, 2024 7:30 PM
To: Huang, Tim <Tim.Huang at amd.com>; amd-gfx at lists.freedesktop.org
Cc: Deucher, Alexander <Alexander.Deucher at amd.com>
Subject: Re: [PATCH v2] drm/amdgpu: fix uninitialized scalar variable warning

Am 23.04.24 um 10:43 schrieb Tim Huang:
> From: Tim Huang <Tim.Huang at amd.com>
>
> Clear warning that uses uninitialized value fw_size.
>
> Signed-off-by: Tim Huang <Tim.Huang at amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 5 +++--
>   1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
> index d95555dc5485..8d5cdbb99d8d 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
> @@ -1084,7 +1084,7 @@ void amdgpu_gfx_cp_init_microcode(struct amdgpu_device *adev,
>       const struct gfx_firmware_header_v2_0 *cp_hdr_v2_0;
>       struct amdgpu_firmware_info *info = NULL;
>       const struct firmware *ucode_fw;
> -     unsigned int fw_size;
> +     unsigned int fw_size = 0;

>
> You don't need that any more when the default case returns.

Yes, will not set this default and send out new patch.  Thanks.

Tim

> Regards,
> Christian.

>
>       switch (ucode_id) {
>       case AMDGPU_UCODE_ID_CP_PFP:
> @@ -1205,7 +1205,8 @@ void amdgpu_gfx_cp_init_microcode(struct amdgpu_device *adev,
>               fw_size = le32_to_cpu(cp_hdr_v2_0->data_size_bytes);
>               break;
>       default:
> -             break;
> +             dev_err(adev->dev, "Invalid ucode id %u\n", ucode_id);
> +             return;
>       }
>
>       if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {