From: Markus Elfring elfring@users.sourceforge.net Date: Tue, 24 Oct 2017 17:47:37 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
The script “checkpatch.pl” pointed information out like the following.
Comparison to NULL could be written !…
Thus fix the affected source code places.
Signed-off-by: Markus Elfring elfring@users.sourceforge.net --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 2 +- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 2 +- drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 2 +- drivers/gpu/drm/rcar-du/rcar_du_kms.c | 6 +++--- drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c | 2 +- drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c | 2 +- drivers/gpu/drm/rcar-du/rcar_du_plane.c | 6 +++--- drivers/gpu/drm/rcar-du/rcar_du_vsp.c | 6 +++--- 8 files changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 301ea1a8018e..67567af6e348 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -410,7 +410,7 @@ void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc) rcrtc->event = NULL; spin_unlock_irqrestore(&dev->event_lock, flags);
- if (event == NULL) + if (!event) return;
spin_lock_irqsave(&dev->event_lock, flags); diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index d2f29e6b1112..cf80476783bf 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -318,7 +318,7 @@ static int rcar_du_probe(struct platform_device *pdev)
/* Allocate and initialize the R-Car device structure. */ rcdu = devm_kzalloc(&pdev->dev, sizeof(*rcdu), GFP_KERNEL); - if (rcdu == NULL) + if (!rcdu) return -ENOMEM;
rcdu->dev = &pdev->dev; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c index ba8d2804c1d1..8a9f7fa69ecc 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c @@ -166,7 +166,7 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu, int ret;
renc = devm_kzalloc(rcdu->dev, sizeof(*renc), GFP_KERNEL); - if (renc == NULL) + if (!renc) return -ENOMEM;
renc->output = output; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index d2c80cc9f8ee..f87c11a3df6c 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -181,7 +181,7 @@ rcar_du_fb_create(struct drm_device *dev, struct drm_file *file_priv, unsigned int i;
format = rcar_du_format_info(mode_cmd->pixel_format); - if (format == NULL) { + if (!format) { dev_dbg(dev->dev, "unsupported pixel format %08x\n", mode_cmd->pixel_format); return ERR_PTR(-EINVAL); @@ -419,7 +419,7 @@ static int rcar_du_properties_init(struct rcar_du_device *rcdu) { rcdu->props.alpha = drm_property_create_range(rcdu->ddev, 0, "alpha", 0, 255); - if (rcdu->props.alpha == NULL) + if (!rcdu->props.alpha) return -ENOMEM;
/* @@ -430,7 +430,7 @@ static int rcar_du_properties_init(struct rcar_du_device *rcdu) rcdu->props.colorkey = drm_property_create_range(rcdu->ddev, 0, "colorkey", 0, 0x01ffffff); - if (rcdu->props.colorkey == NULL) + if (!rcdu->props.colorkey) return -ENOMEM;
return 0; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c index b373ad48ef5f..189e71b3d5d4 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c @@ -63,7 +63,7 @@ int rcar_du_lvds_connector_init(struct rcar_du_device *rcdu, int ret;
rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL); - if (rcon == NULL) + if (!rcon) return -ENOMEM;
connector = &rcon->connector; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c b/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c index 12d22f3db1af..ab2576e5d700 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c @@ -253,7 +253,7 @@ int rcar_du_lvdsenc_init(struct rcar_du_device *rcdu)
for (i = 0; i < rcdu->info->num_lvds; ++i) { lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL); - if (lvds == NULL) + if (!lvds) return -ENOMEM;
lvds->dev = rcdu; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c index 61833cc1c699..f48a990214ed 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c @@ -584,7 +584,7 @@ static int rcar_du_plane_atomic_check(struct drm_plane *plane, }
rstate->format = rcar_du_format_info(state->fb->format->format); - if (rstate->format == NULL) { + if (!rstate->format) { dev_dbg(rcdu->dev, "%s: unsupported format %08x\n", __func__, state->fb->format->format); return -EINVAL; @@ -637,7 +637,7 @@ rcar_du_plane_atomic_duplicate_state(struct drm_plane *plane)
state = to_rcar_plane_state(plane->state); copy = kmemdup(state, sizeof(*state), GFP_KERNEL); - if (copy == NULL) + if (!copy) return NULL;
__drm_atomic_helper_plane_duplicate_state(plane, ©->state); @@ -662,7 +662,7 @@ static void rcar_du_plane_reset(struct drm_plane *plane) }
state = kzalloc(sizeof(*state), GFP_KERNEL); - if (state == NULL) + if (!state) return;
state->hwindex = -1; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c index 2c96147bc444..e8e261362d9a 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c @@ -283,7 +283,7 @@ static int rcar_du_vsp_plane_atomic_check(struct drm_plane *plane, }
rstate->format = rcar_du_format_info(state->fb->format->format); - if (rstate->format == NULL) { + if (!rstate->format) { dev_dbg(rcdu->dev, "%s: unsupported format %08x\n", __func__, state->fb->format->format); return -EINVAL; @@ -323,7 +323,7 @@ rcar_du_vsp_plane_atomic_duplicate_state(struct drm_plane *plane)
state = to_rcar_vsp_plane_state(plane->state); copy = kmemdup(state, sizeof(*state), GFP_KERNEL); - if (copy == NULL) + if (!copy) return NULL;
__drm_atomic_helper_plane_duplicate_state(plane, ©->state); @@ -348,7 +348,7 @@ static void rcar_du_vsp_plane_reset(struct drm_plane *plane) }
state = kzalloc(sizeof(*state), GFP_KERNEL); - if (state == NULL) + if (!state) return;
state->alpha = 255;