vc4_debugfs_add_file() can fail, so let's propagate its error code instead of silencing it.
Signed-off-by: Maxime Ripard maxime@cerno.tech --- drivers/gpu/drm/vc4/vc4_debugfs.c | 20 +++++++++++--------- drivers/gpu/drm/vc4/vc4_drv.h | 30 ++++++++++++++++-------------- 2 files changed, 27 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_debugfs.c b/drivers/gpu/drm/vc4/vc4_debugfs.c index d6350a8ca048..b857fb9c94bc 100644 --- a/drivers/gpu/drm/vc4/vc4_debugfs.c +++ b/drivers/gpu/drm/vc4/vc4_debugfs.c @@ -67,10 +67,10 @@ static int vc4_debugfs_regset32(struct seq_file *m, void *unused) * track the request and delay it to be called on each minor during * vc4_debugfs_init(). */ -void vc4_debugfs_add_file(struct drm_device *dev, - const char *name, - int (*show)(struct seq_file*, void*), - void *data) +int vc4_debugfs_add_file(struct drm_device *dev, + const char *name, + int (*show)(struct seq_file*, void*), + void *data) { struct vc4_dev *vc4 = to_vc4_dev(dev);
@@ -78,18 +78,20 @@ void vc4_debugfs_add_file(struct drm_device *dev, devm_kzalloc(dev->dev, sizeof(*entry), GFP_KERNEL);
if (!entry) - return; + return -ENOMEM;
entry->info.name = name; entry->info.show = show; entry->info.data = data;
list_add(&entry->link, &vc4->debugfs_list); + + return 0; }
-void vc4_debugfs_add_regset32(struct drm_device *drm, - const char *name, - struct debugfs_regset32 *regset) +int vc4_debugfs_add_regset32(struct drm_device *drm, + const char *name, + struct debugfs_regset32 *regset) { - vc4_debugfs_add_file(drm, name, vc4_debugfs_regset32, regset); + return vc4_debugfs_add_file(drm, name, vc4_debugfs_regset32, regset); } diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index ce12d7ec9c6e..e029dbd4567b 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -865,25 +865,27 @@ void vc4_crtc_get_margins(struct drm_crtc_state *state, /* vc4_debugfs.c */ void vc4_debugfs_init(struct drm_minor *minor); #ifdef CONFIG_DEBUG_FS -void vc4_debugfs_add_file(struct drm_device *drm, - const char *filename, - int (*show)(struct seq_file*, void*), - void *data); -void vc4_debugfs_add_regset32(struct drm_device *drm, - const char *filename, - struct debugfs_regset32 *regset); +int vc4_debugfs_add_file(struct drm_device *drm, + const char *filename, + int (*show)(struct seq_file*, void*), + void *data); +int vc4_debugfs_add_regset32(struct drm_device *drm, + const char *filename, + struct debugfs_regset32 *regset); #else -static inline void vc4_debugfs_add_file(struct drm_device *drm, - const char *filename, - int (*show)(struct seq_file*, void*), - void *data) +static inline int vc4_debugfs_add_file(struct drm_device *drm, + const char *filename, + int (*show)(struct seq_file*, void*), + void *data) { + return 0; }
-static inline void vc4_debugfs_add_regset32(struct drm_device *drm, - const char *filename, - struct debugfs_regset32 *regset) +static inline int vc4_debugfs_add_regset32(struct drm_device *drm, + const char *filename, + struct debugfs_regset32 *regset) { + return 0; } #endif