From 3a568051f3ae23d1a570a3d58eacde55279c632e Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Wed, 15 Oct 2008 22:03:33 -0700 Subject: neofb: remove open_lock mutex Remove mutex from the fb_open/fb_release functions as these operations are mutexed at fb layer. Signed-off-by: Krzysztof Helt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/neofb.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/video/neofb.c b/drivers/video/neofb.c index dea86455258..bfb802d26d5 100644 --- a/drivers/video/neofb.c +++ b/drivers/video/neofb.c @@ -557,14 +557,12 @@ neofb_open(struct fb_info *info, int user) { struct neofb_par *par = info->par; - mutex_lock(&par->open_lock); if (!par->ref_count) { memset(&par->state, 0, sizeof(struct vgastate)); par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS; save_vga(&par->state); } par->ref_count++; - mutex_unlock(&par->open_lock); return 0; } @@ -574,16 +572,13 @@ neofb_release(struct fb_info *info, int user) { struct neofb_par *par = info->par; - mutex_lock(&par->open_lock); - if (!par->ref_count) { - mutex_unlock(&par->open_lock); + if (!par->ref_count) return -EINVAL; - } + if (par->ref_count == 1) { restore_vga(&par->state); } par->ref_count--; - mutex_unlock(&par->open_lock); return 0; } @@ -1958,7 +1953,6 @@ static struct fb_info *__devinit neo_alloc_fb_info(struct pci_dev *dev, const st info->fix.accel = id->driver_data; - mutex_init(&par->open_lock); par->pci_burst = !nopciburst; par->lcd_stretch = !nostretch; par->libretto = libretto; -- cgit v1.2.3-70-g09d2