[PATCH] drm: fixes when i2c encoder slave mode_fixup is null.

[Carlos Palminha]

Avoid i2c slave encoder drivers to copy/paste code to implement functions that 
will
only return true.

Signed-off-by: Carlos Palminha <palminha at synopsys.com>
---
 drivers/gpu/drm/drm_encoder_slave.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/drm_encoder_slave.c 
b/drivers/gpu/drm/drm_encoder_slave.c
index e862907..418b94c 100644
--- a/drivers/gpu/drm/drm_encoder_slave.c
+++ b/drivers/gpu/drm/drm_encoder_slave.c
@@ -140,6 +140,8 @@ bool drm_i2c_encoder_mode_fixup(struct drm_encoder *encoder,
                const struct drm_display_mode *mode,
                struct drm_display_mode *adjusted_mode)
 {
+       if(!get_slave_funcs(encoder)->mode_fixup)
+               return true;
        return get_slave_funcs(encoder)->mode_fixup(encoder, mode, 
adjusted_mode);
 }
 EXPORT_SYMBOL(drm_i2c_encoder_mode_fixup);
--
2.5.0