drm/msm/dp: Simplify dp_debug_init() and dp_debug_get()

dp_debug_init() always returns 0. So, make it a void function and simplify
the only caller accordingly.

While at it remove a useless 'rc' initialization in dp_debug_get()

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/dc2d6f535379dd38a5e3f9ba502f1f2b3d1f56b7.1640201523.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

diff --git a/drivers/gpu/drm/msm/dp/dp_debug.c b/drivers/gpu/drm/msm/dp/dp_debug.c
index 67da4c69eca1b5753286ad07687b4fd53d905d29..2f9c943f12d566dd82908630bf91c2ee7bed6d48 100644 (file)
--- a/drivers/gpu/drm/msm/dp/dp_debug.c
+++ b/drivers/gpu/drm/msm/dp/dp_debug.c
@@ -207,9 +207,8 @@ static const struct file_operations test_active_fops = {
        .write = dp_test_active_write
 };
 
-static int dp_debug_init(struct dp_debug *dp_debug, struct drm_minor *minor)
+static void dp_debug_init(struct dp_debug *dp_debug, struct drm_minor *minor)
 {
-       int rc = 0;
        char path[64];
        struct dp_debug_private *debug = container_of(dp_debug,
                        struct dp_debug_private, dp_debug);
@@ -232,17 +231,15 @@ static int dp_debug_init(struct dp_debug *dp_debug, struct drm_minor *minor)
        debugfs_create_file("msm_dp_test_type", 0444,
                        debug->root,
                        debug, &dp_test_type_fops);
-
-       return rc;
 }
 
 struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel,
                struct dp_usbpd *usbpd, struct dp_link *link,
                struct drm_connector *connector, struct drm_minor *minor)
 {
-       int rc = 0;
        struct dp_debug_private *debug;
        struct dp_debug *dp_debug;
+       int rc;
 
        if (!dev || !panel || !usbpd || !link) {
                DRM_ERROR("invalid input\n");
@@ -269,11 +266,7 @@ struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel,
        dp_debug->hdisplay = 0;
        dp_debug->vrefresh = 0;
 
-       rc = dp_debug_init(dp_debug, minor);
-       if (rc) {
-               devm_kfree(dev, debug);
-               goto error;
-       }
+       dp_debug_init(dp_debug, minor);
 
        return dp_debug;
  error: