diff options
Diffstat (limited to 'drivers/video/fbdev/core/fbmem.c')
| -rw-r--r-- | drivers/video/fbdev/core/fbmem.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index da7c88ffaa6a..8268bbee8cae 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -777,7 +777,7 @@ fb_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) if (info->fbops->fb_read) return info->fbops->fb_read(info, buf, count, ppos); - + total_size = info->screen_size; if (total_size == 0) @@ -842,7 +842,7 @@ fb_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) if (info->fbops->fb_write) return info->fbops->fb_write(info, buf, count, ppos); - + total_size = info->screen_size; if (total_size == 0) @@ -1006,6 +1006,10 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var) return 0; } + /* bitfill_aligned() assumes that it's at least 8x8 */ + if (var->xres < 8 || var->yres < 8) + return -EINVAL; + ret = info->fbops->fb_check_var(var, info); if (ret) @@ -1057,7 +1061,7 @@ EXPORT_SYMBOL(fb_set_var); int fb_blank(struct fb_info *info, int blank) -{ +{ struct fb_event event; int ret = -EINVAL; @@ -1306,7 +1310,7 @@ static long fb_compat_ioctl(struct file *file, unsigned int cmd, case FBIOGET_CON2FBMAP: case FBIOPUT_CON2FBMAP: arg = (unsigned long) compat_ptr(arg); - /* fall through */ + fallthrough; case FBIOBLANK: ret = do_fb_ioctl(info, cmd, arg); break; @@ -1433,7 +1437,7 @@ out: return res; } -static int +static int fb_release(struct inode *inode, struct file *file) __acquires(&info->lock) __releases(&info->lock) @@ -1623,7 +1627,7 @@ static int do_register_framebuffer(struct fb_info *fb_info) fb_info->pixmap.access_align = 32; fb_info->pixmap.flags = FB_PIXMAP_DEFAULT; } - } + } fb_info->pixmap.offset = 0; if (!fb_info->pixmap.blit_x) |