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Commit 7cc0a3d8 authored by Alex Deucher's avatar Alex Deucher
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drm/radeon/dce6/audio: make sure pin is valid before accessing it 



Make sure the audio pin is valid before accessing its members.

Noticed by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 63580c3e

drivers/gpu/drm/radeon/dce6_afmt.c

+2 −2
Original line number Diff line number Diff line
@@ -86,12 +86,12 @@ void dce6_afmt_select_pin(struct drm_encoder *encoder) 
	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);

	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;

	u32 offset = dig->afmt->offset;

	u32 id = dig->afmt->pin->id;



	if (!dig->afmt->pin)

		return;



	WREG32(AFMT_AUDIO_SRC_CONTROL + offset, AFMT_AUDIO_SRC_SELECT(id));

	WREG32(AFMT_AUDIO_SRC_CONTROL + offset,

	       AFMT_AUDIO_SRC_SELECT(dig->afmt->pin->id));

}



void dce6_afmt_write_speaker_allocation(struct drm_encoder *encoder)