diff options
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/amifb.c | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/drivers/video/amifb.c b/drivers/video/amifb.c index 8cfba10f843..2c42a812655 100644 --- a/drivers/video/amifb.c +++ b/drivers/video/amifb.c @@ -1166,8 +1166,8 @@ static void ami_update_display(void); static void ami_init_display(void); static void ami_do_blank(void); static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix); -static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data); -static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data); +static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data); +static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data); static int ami_get_cursorstate(struct fb_cursorstate *state); static int ami_set_cursorstate(struct fb_cursorstate *state); static void ami_set_sprite(void); @@ -2181,6 +2181,7 @@ static int amifb_ioctl(struct inode *inode, struct file *file, struct fb_var_cursorinfo var; struct fb_cursorstate state; } crsr; + void __user *argp = (void __user *)arg; int i; switch (cmd) { @@ -2188,33 +2189,32 @@ static int amifb_ioctl(struct inode *inode, struct file *file, i = ami_get_fix_cursorinfo(&crsr.fix); if (i) return i; - return copy_to_user((void *)arg, &crsr.fix, + return copy_to_user(argp, &crsr.fix, sizeof(crsr.fix)) ? -EFAULT : 0; case FBIOGET_VCURSORINFO: i = ami_get_var_cursorinfo(&crsr.var, - ((struct fb_var_cursorinfo *)arg)->data); + ((struct fb_var_cursorinfo __user *)arg)->data); if (i) return i; - return copy_to_user((void *)arg, &crsr.var, + return copy_to_user(argp, &crsr.var, sizeof(crsr.var)) ? -EFAULT : 0; case FBIOPUT_VCURSORINFO: - if (copy_from_user(&crsr.var, (void *)arg, - sizeof(crsr.var))) + if (copy_from_user(&crsr.var, argp, sizeof(crsr.var))) return -EFAULT; return ami_set_var_cursorinfo(&crsr.var, - ((struct fb_var_cursorinfo *)arg)->data); + ((struct fb_var_cursorinfo __user *)arg)->data); case FBIOGET_CURSORSTATE: i = ami_get_cursorstate(&crsr.state); if (i) return i; - return copy_to_user((void *)arg, &crsr.state, + return copy_to_user(argp, &crsr.state, sizeof(crsr.state)) ? -EFAULT : 0; case FBIOPUT_CURSORSTATE: - if (copy_from_user(&crsr.state, (void *)arg, + if (copy_from_user(&crsr.state, argp, sizeof(crsr.state))) return -EFAULT; return ami_set_cursorstate(&crsr.state); @@ -3327,7 +3327,7 @@ static int ami_get_fix_cursorinfo(struct fb_fix_cursorinfo *fix) return 0; } -static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data) +static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data) { struct amifb_par *par = ¤tpar; register u_short *lspr, *sspr; @@ -3349,14 +3349,14 @@ static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data) var->yspot = par->crsr.spot_y; if (size > var->height*var->width) return -ENAMETOOLONG; - if (!access_ok(VERIFY_WRITE, (void *)data, size)) + if (!access_ok(VERIFY_WRITE, data, size)) return -EFAULT; delta = 1<<par->crsr.fmode; lspr = lofsprite + (delta<<1); if (par->bplcon0 & BPC0_LACE) sspr = shfsprite + (delta<<1); else - sspr = 0; + sspr = NULL; for (height = (short)var->height-1; height >= 0; height--) { bits = 0; words = delta; datawords = 0; for (width = (short)var->width-1; width >= 0; width--) { @@ -3402,7 +3402,7 @@ static int ami_get_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data) return 0; } -static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data) +static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char __user *data) { struct amifb_par *par = ¤tpar; register u_short *lspr, *sspr; @@ -3429,7 +3429,7 @@ static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data) return -EINVAL; if (!var->height) return -EINVAL; - if (!access_ok(VERIFY_READ, (void *)data, var->width*var->height)) + if (!access_ok(VERIFY_READ, data, var->width*var->height)) return -EFAULT; delta = 1<<fmode; lofsprite = shfsprite = (u_short *)spritememory; @@ -3444,13 +3444,13 @@ static int ami_set_var_cursorinfo(struct fb_var_cursorinfo *var, u_char *data) if (((var->height+2)<<fmode<<2) > SPRITEMEMSIZE) return -EINVAL; memset(lspr, 0, (var->height+2)<<fmode<<2); - sspr = 0; + sspr = NULL; } for (height = (short)var->height-1; height >= 0; height--) { bits = 16; words = delta; datawords = 0; for (width = (short)var->width-1; width >= 0; width--) { unsigned long tdata = 0; - get_user(tdata, (char *)data); + get_user(tdata, data); data++; #ifdef __mc68000__ asm volatile ( |