[Intel-gfx] [PATCH 3/6] drm/i915/dsi: return -EBUSY instead of -1

[Jani Nikula]

Avoid using the incidental -EPERM. Also remove useless comment.

Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
 drivers/gpu/drm/i915/display/icl_dsi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c 
b/drivers/gpu/drm/i915/display/icl_dsi.c
index 0daa90058ee3..9ee62707ec72 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -169,9 +169,8 @@ static int dsi_send_pkt_hdr(struct intel_dsi_host *host,
        enum transcoder dsi_trans = dsi_port_to_transcoder(host->port);
        u32 tmp;
 
-       /* check if header credit available */
        if (!wait_for_header_credits(dev_priv, dsi_trans, 1))
-               return -1;
+               return -EBUSY;
 
        tmp = intel_de_read(dev_priv, DSI_CMD_TXHDR(dsi_trans));
 
-- 
2.30.2