diff options
| author | Martin Kaiser <martin@kaiser.cx> | 2023-06-28 16:24:37 +0300 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2023-07-11 08:22:45 +0300 |
| commit | 4e47382fbca916d7db95cbf9e2d7ca2e9d1ca3fe (patch) | |
| tree | a3af51e0ff195d806eb51fdfa59035b5ee9f6314 /drivers/video/fbdev/imxfb.c | |
| parent | 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5 (diff) | |
| download | linux-4e47382fbca916d7db95cbf9e2d7ca2e9d1ca3fe.tar.xz | |
fbdev: imxfb: warn about invalid left/right margin
Warn about invalid var->left_margin or var->right_margin. Their values
are read from the device tree.
We store var->left_margin-3 and var->right_margin-1 in register
fields. These fields should be >= 0.
Fixes: 7e8549bcee00 ("imxfb: Fix margin settings")
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'drivers/video/fbdev/imxfb.c')
| -rw-r--r-- | drivers/video/fbdev/imxfb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c index adf36690c342..5fbcb78a9cae 100644 --- a/drivers/video/fbdev/imxfb.c +++ b/drivers/video/fbdev/imxfb.c @@ -613,10 +613,10 @@ static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *inf if (var->hsync_len < 1 || var->hsync_len > 64) printk(KERN_ERR "%s: invalid hsync_len %d\n", info->fix.id, var->hsync_len); - if (var->left_margin > 255) + if (var->left_margin < 3 || var->left_margin > 255) printk(KERN_ERR "%s: invalid left_margin %d\n", info->fix.id, var->left_margin); - if (var->right_margin > 255) + if (var->right_margin < 1 || var->right_margin > 255) printk(KERN_ERR "%s: invalid right_margin %d\n", info->fix.id, var->right_margin); if (var->yres < 1 || var->yres > ymax_mask) |