From: Laurent Pinchart Date: Thu, 17 May 2012 11:27:21 +0000 (+0200) Subject: drm: Don't initialize local ret variable when not needed X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=4a1b0714275796fdbc35427cf361eb4123e5e9f6;p=openwrt%2Fstaging%2Fblogic.git drm: Don't initialize local ret variable when not needed Signed-off-by: Laurent Pinchart Reviewed-by: Alex Deucher Signed-off-by: Dave Airlie --- diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index a177d0abb8bb..da737ef7759e 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1829,7 +1829,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, struct drm_display_mode *mode = NULL; struct drm_mode_set set; uint32_t __user *set_connectors_ptr; - int ret = 0; + int ret; int i; if (!drm_core_check_feature(dev, DRIVER_MODESET)) @@ -2248,7 +2248,7 @@ int drm_mode_addfb2(struct drm_device *dev, struct drm_mode_fb_cmd2 *r = data; struct drm_mode_config *config = &dev->mode_config; struct drm_framebuffer *fb; - int ret = 0; + int ret; if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EINVAL; @@ -2403,7 +2403,7 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev, struct drm_framebuffer *fb; unsigned flags; int num_clips; - int ret = 0; + int ret; if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EINVAL; @@ -2602,7 +2602,7 @@ int drm_mode_attachmode_ioctl(struct drm_device *dev, struct drm_display_mode *mode; struct drm_mode_object *obj; struct drm_mode_modeinfo *umode = &mode_cmd->mode; - int ret = 0; + int ret; if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EINVAL; @@ -2656,7 +2656,7 @@ int drm_mode_detachmode_ioctl(struct drm_device *dev, struct drm_connector *connector; struct drm_display_mode mode; struct drm_mode_modeinfo *umode = &mode_cmd->mode; - int ret = 0; + int ret; if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EINVAL; @@ -3065,7 +3065,7 @@ int drm_mode_connector_update_edid_property(struct drm_connector *connector, struct edid *edid) { struct drm_device *dev = connector->dev; - int ret = 0, size; + int ret, size; if (connector->edid_blob_ptr) drm_property_destroy_blob(dev, connector->edid_blob_ptr); diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 974196ab7b22..3252e7067d8b 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -518,7 +518,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) int count = 0, ro, fail = 0; struct drm_crtc_helper_funcs *crtc_funcs; struct drm_mode_set save_set; - int ret = 0; + int ret; int i; DRM_DEBUG_KMS("\n"); diff --git a/drivers/gpu/drm/drm_edid_load.c b/drivers/gpu/drm/drm_edid_load.c index 48c927c37041..66d4a28ad5a2 100644 --- a/drivers/gpu/drm/drm_edid_load.c +++ b/drivers/gpu/drm/drm_edid_load.c @@ -220,18 +220,18 @@ int drm_load_edid_firmware(struct drm_connector *connector) { char *connector_name = drm_get_connector_name(connector); char *edidname = edid_firmware, *last, *colon; - int ret = 0; + int ret; if (*edidname == '\0') - return ret; + return 0; colon = strchr(edidname, ':'); if (colon != NULL) { if (strncmp(connector_name, edidname, colon - edidname)) - return ret; + return 0; edidname = colon + 1; if (*edidname == '\0') - return ret; + return 0; } last = edidname + strlen(edidname) - 1; diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 6e19dd156be0..9b773d51cff5 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -383,7 +383,6 @@ int drm_fb_helper_init(struct drm_device *dev, int crtc_count, int max_conn_count) { struct drm_crtc *crtc; - int ret = 0; int i; fb_helper->dev = dev; @@ -408,10 +407,8 @@ int drm_fb_helper_init(struct drm_device *dev, sizeof(struct drm_connector *), GFP_KERNEL); - if (!fb_helper->crtc_info[i].mode_set.connectors) { - ret = -ENOMEM; + if (!fb_helper->crtc_info[i].mode_set.connectors) goto out_free; - } fb_helper->crtc_info[i].mode_set.num_connectors = 0; } diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 1ab29a7345c5..72ba0757feaa 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -328,7 +328,7 @@ drm_gem_create_mmap_offset(struct drm_gem_object *obj) struct drm_gem_mm *mm = dev->mm_private; struct drm_map_list *list; struct drm_local_map *map; - int ret = 0; + int ret; /* Set the object up for mmap'ing */ list = &obj->map_list; diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c index acd2cb45a513..c798eeae0a03 100644 --- a/drivers/gpu/drm/drm_irq.c +++ b/drivers/gpu/drm/drm_irq.c @@ -310,7 +310,7 @@ static void drm_irq_vgaarb_nokms(void *cookie, bool state) */ int drm_irq_install(struct drm_device *dev) { - int ret = 0; + int ret; unsigned long sh_flags = 0; char *irqname; @@ -731,7 +731,7 @@ EXPORT_SYMBOL(drm_calc_vbltimestamp_from_scanoutpos); u32 drm_get_last_vbltimestamp(struct drm_device *dev, int crtc, struct timeval *tvblank, unsigned flags) { - int ret = 0; + int ret; /* Define requested maximum error on timestamps (nanoseconds). */ int max_error = (int) drm_timestamp_precision * 1000; @@ -1031,18 +1031,15 @@ int drm_modeset_ctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct drm_modeset_ctl *modeset = data; - int ret = 0; unsigned int crtc; /* If drm_vblank_init() hasn't been called yet, just no-op */ if (!dev->num_crtcs) - goto out; + return 0; crtc = modeset->crtc; - if (crtc >= dev->num_crtcs) { - ret = -EINVAL; - goto out; - } + if (crtc >= dev->num_crtcs) + return -EINVAL; switch (modeset->cmd) { case _DRM_PRE_MODESET: @@ -1052,12 +1049,10 @@ int drm_modeset_ctl(struct drm_device *dev, void *data, drm_vblank_post_modeset(dev, crtc); break; default: - ret = -EINVAL; - break; + return -EINVAL; } -out: - return ret; + return 0; } static int drm_queue_vblank_event(struct drm_device *dev, int pipe, @@ -1154,7 +1149,7 @@ int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_priv) { union drm_wait_vblank *vblwait = data; - int ret = 0; + int ret; unsigned int flags, seq, crtc, high_crtc; if ((!drm_dev_to_irq(dev)) || (!dev->irq_enabled)) diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c index c79c713eeba0..521152041691 100644 --- a/drivers/gpu/drm/drm_lock.c +++ b/drivers/gpu/drm/drm_lock.c @@ -331,7 +331,7 @@ static int drm_notifier(void *priv) void drm_idlelock_take(struct drm_lock_data *lock_data) { - int ret = 0; + int ret; spin_lock_bh(&lock_data->spinlock); lock_data->kernel_waiters++; diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index ae1ccf1d5d96..21bcd4a555d8 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -210,7 +210,7 @@ EXPORT_SYMBOL(drm_master_put); int drm_setmaster_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { - int ret = 0; + int ret; if (file_priv->is_master) return 0; diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index 5a7bd51fc3d8..c29fa9c968ae 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -366,7 +366,7 @@ int drm_sysfs_connector_add(struct drm_connector *connector) int attr_cnt = 0; int opt_cnt = 0; int i; - int ret = 0; + int ret; /* We shouldn't get called more than once for the same connector */ BUG_ON(device_is_registered(&connector->kdev));