提交 98da3295 编写于 作者: A Alessio Igor Bogani 提交者: Linus Torvalds

nvidiafb: remove open_lock mutex

Remove mutex from the nvidiafb_open/nvidiafb_release functions as these
operations are mutexed at fb layer.
Signed-off-by: NAlessio Igor Bogani <abogani@texware.it>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
上级 18b41f1c
......@@ -5,7 +5,6 @@
#include <linux/types.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/mutex.h>
#include <video/vga.h>
#define NV_ARCH_04 0x04
......@@ -99,7 +98,6 @@ struct nvidia_par {
RIVA_HW_STATE initial_state;
RIVA_HW_STATE *CurrentState;
struct vgastate vgastate;
struct mutex open_lock;
u32 pseudo_palette[16];
struct pci_dev *pci_dev;
u32 Architecture;
......
......@@ -1004,15 +1004,12 @@ static int nvidiafb_open(struct fb_info *info, int user)
{
struct nvidia_par *par = info->par;
mutex_lock(&par->open_lock);
if (!par->open_count) {
save_vga_x86(par);
nvidia_save_vga(par, &par->initial_state);
}
par->open_count++;
mutex_unlock(&par->open_lock);
return 0;
}
......@@ -1021,8 +1018,6 @@ static int nvidiafb_release(struct fb_info *info, int user)
struct nvidia_par *par = info->par;
int err = 0;
mutex_lock(&par->open_lock);
if (!par->open_count) {
err = -EINVAL;
goto done;
......@@ -1035,7 +1030,6 @@ static int nvidiafb_release(struct fb_info *info, int user)
par->open_count--;
done:
mutex_unlock(&par->open_lock);
return err;
}
......@@ -1300,7 +1294,6 @@ static int __devinit nvidiafb_probe(struct pci_dev *pd,
par = info->par;
par->pci_dev = pd;
mutex_init(&par->open_lock);
info->pixmap.addr = kzalloc(8 * 1024, GFP_KERNEL);
if (info->pixmap.addr == NULL)
......
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