From 3608c66c2e6522952b4be219317b194ab27f4e78 Mon Sep 17 00:00:00 2001 From: Vivek Kutal Date: Tue, 16 Jun 2009 15:34:42 -0700 Subject: [PATCH] fbdev: *bfin*: drop unnecessary calls to memset The dma_alloc_* functions sets the memory to 0 before returning so there is no need to call memset after the allocation. Also no point in clearing the memory when disabling the buffer. Signed-off-by: Vivek Kutal Signed-off-by: Mike Frysinger Cc: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/bf54x-lq043fb.c | 3 --- drivers/video/bfin-t350mcqb-fb.c | 3 --- 2 files changed, 6 deletions(-) diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c index 37e60b1d2ed9..6439a437ddf9 100644 --- a/drivers/video/bf54x-lq043fb.c +++ b/drivers/video/bf54x-lq043fb.c @@ -323,7 +323,6 @@ static int bfin_bf54x_fb_release(struct fb_info *info, int user) bfin_write_EPPI0_CONTROL(0); SSYNC(); disable_dma(CH_EPPI0); - memset(fbi->fb_buffer, 0, info->fix.smem_len); } spin_unlock(&fbi->lock); @@ -626,8 +625,6 @@ static int __init bfin_bf54x_probe(struct platform_device *pdev) goto out3; } - memset(info->fb_buffer, 0, fbinfo->fix.smem_len); - fbinfo->screen_base = (void *)info->fb_buffer; fbinfo->fix.smem_start = (int)info->fb_buffer; diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c index 2a2e116b7fb1..f40eef8d1dda 100644 --- a/drivers/video/bfin-t350mcqb-fb.c +++ b/drivers/video/bfin-t350mcqb-fb.c @@ -242,7 +242,6 @@ static int bfin_t350mcqb_fb_release(struct fb_info *info, int user) SSYNC(); disable_dma(CH_PPI); bfin_t350mcqb_stop_timers(); - memset(fbi->fb_buffer, 0, info->fix.smem_len); } spin_unlock(&fbi->lock); @@ -527,8 +526,6 @@ static int __devinit bfin_t350mcqb_probe(struct platform_device *pdev) goto out3; } - memset(info->fb_buffer, 0, fbinfo->fix.smem_len); - fbinfo->screen_base = (void *)info->fb_buffer + ACTIVE_VIDEO_MEM_OFFSET; fbinfo->fix.smem_start = (int)info->fb_buffer + ACTIVE_VIDEO_MEM_OFFSET; -- 2.20.1