From cdf88b9072a86545611b9c3f5597ebc47e50ffc1 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 22 Nov 2011 00:56:58 +0100 Subject: [PATCH] fbdev: sh_mobile_meram: Remove unneeded sanity checks The meram_register(), meram_unregister() and meram_update() operations check that the pointers they get from the caller are not NULL. Those checks can be remove, as the caller already ensures that the pointers are valid. The platform sanity checks can also be removed, as the operations can't be accessed without valid platform data anyway. Signed-off-by: Laurent Pinchart --- drivers/video/sh_mobile_lcdcfb.c | 5 +---- drivers/video/sh_mobile_meram.c | 32 ++++++-------------------------- include/video/sh_mobile_meram.h | 15 +++++++-------- 3 files changed, 14 insertions(+), 38 deletions(-) diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c index 4b54cd5..7a0b301 100644 --- a/drivers/video/sh_mobile_lcdcfb.c +++ b/drivers/video/sh_mobile_lcdcfb.c @@ -1072,14 +1072,11 @@ static int sh_mobile_fb_pan_display(struct fb_var_screeninfo *var, if (ch->meram) { struct sh_mobile_meram_info *mdev; - int ret; mdev = priv->meram_dev; - ret = mdev->ops->meram_update(mdev, ch->meram, + mdev->ops->meram_update(mdev, ch->meram, base_addr_y, base_addr_c, &base_addr_y, &base_addr_c); - if (ret) - return ret; } ch->base_addr_y = base_addr_y; diff --git a/drivers/video/sh_mobile_meram.c b/drivers/video/sh_mobile_meram.c index 2ce0d8f..d9f7a44 100644 --- a/drivers/video/sh_mobile_meram.c +++ b/drivers/video/sh_mobile_meram.c @@ -451,21 +451,15 @@ static void *sh_mobile_meram_register(struct sh_mobile_meram_info *pdata, unsigned int *pitch) { struct sh_mobile_meram_fb_cache *cache; - struct sh_mobile_meram_priv *priv; - struct platform_device *pdev; + struct sh_mobile_meram_priv *priv = pdata->priv; + struct platform_device *pdev = pdata->pdev; unsigned int out_pitch; - if (!pdata || !pdata->priv || !pdata->pdev || !cfg) - return ERR_PTR(-EINVAL); - if (pixelformat != SH_MOBILE_MERAM_PF_NV && pixelformat != SH_MOBILE_MERAM_PF_NV24 && pixelformat != SH_MOBILE_MERAM_PF_RGB) return ERR_PTR(-EINVAL); - priv = pdata->priv; - pdev = pdata->pdev; - dev_dbg(&pdev->dev, "registering %dx%d (%s)", xres, yres, !pixelformat ? "yuv" : "rgb"); @@ -500,16 +494,11 @@ err: return cache; } -static int +static void sh_mobile_meram_unregister(struct sh_mobile_meram_info *pdata, void *data) { struct sh_mobile_meram_fb_cache *cache = data; - struct sh_mobile_meram_priv *priv; - - if (!pdata || !pdata->priv || !data) - return -EINVAL; - - priv = pdata->priv; + struct sh_mobile_meram_priv *priv = pdata->priv; mutex_lock(&priv->lock); @@ -521,22 +510,15 @@ sh_mobile_meram_unregister(struct sh_mobile_meram_info *pdata, void *data) meram_free(priv, cache); mutex_unlock(&priv->lock); - - return 0; } -static int +static void sh_mobile_meram_update(struct sh_mobile_meram_info *pdata, void *data, unsigned long base_addr_y, unsigned long base_addr_c, unsigned long *icb_addr_y, unsigned long *icb_addr_c) { struct sh_mobile_meram_fb_cache *cache = data; - struct sh_mobile_meram_priv *priv; - - if (!pdata || !pdata->priv || !data) - return -EINVAL; - - priv = pdata->priv; + struct sh_mobile_meram_priv *priv = pdata->priv; mutex_lock(&priv->lock); @@ -544,8 +526,6 @@ sh_mobile_meram_update(struct sh_mobile_meram_info *pdata, void *data, meram_get_next_icb_addr(pdata, cache, icb_addr_y, icb_addr_c); mutex_unlock(&priv->lock); - - return 0; } static struct sh_mobile_meram_ops sh_mobile_meram_ops = { diff --git a/include/video/sh_mobile_meram.h b/include/video/sh_mobile_meram.h index 553335c..29b2fd3 100644 --- a/include/video/sh_mobile_meram.h +++ b/include/video/sh_mobile_meram.h @@ -49,16 +49,15 @@ struct sh_mobile_meram_ops { unsigned int *pitch); /* unregister usage of meram */ - int (*meram_unregister)(struct sh_mobile_meram_info *meram_dev, - void *data); + void (*meram_unregister)(struct sh_mobile_meram_info *meram_dev, + void *data); /* update meram settings */ - int (*meram_update)(struct sh_mobile_meram_info *meram_dev, - void *data, - unsigned long base_addr_y, - unsigned long base_addr_c, - unsigned long *icb_addr_y, - unsigned long *icb_addr_c); + void (*meram_update)(struct sh_mobile_meram_info *meram_dev, void *data, + unsigned long base_addr_y, + unsigned long base_addr_c, + unsigned long *icb_addr_y, + unsigned long *icb_addr_c); }; #endif /* __VIDEO_SH_MOBILE_MERAM_H__ */ -- 2.7.4