From mboxrd@z Thu Jan 1 00:00:00 1970 From: Claude Code Review Bot To: dri-devel-reviews@example.com Subject: Claude review: fbdev: udlfb: avoid divide-by-zero on FBIOPUT_VSCREENINFO Date: Sun, 12 Apr 2026 11:08:13 +1000 Message-ID: In-Reply-To: <2026040945-glare-devouring-f242@gregkh> References: <2026040945-glare-devouring-f242@gregkh> X-Mailer: Claude Code Patch Reviewer Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit MIME-Version: 1.0 Overall Series Review Subject: fbdev: udlfb: avoid divide-by-zero on FBIOPUT_VSCREENINFO Author: Greg Kroah-Hartman Patches: 2 Reviewed: 2026-04-12T11:08:13.381342 --- This is a single-patch series from Greg Kroah-Hartman that adds a divide-by-zero guard in the udlfb framebuffer driver's `check_var` callback. The fix is straightforward, correct, and follows an established pattern already applied to other fbdev drivers (e.g., `pm2fb` in commit 19f953e74356). The divide-by-zero can be triggered from userspace via the `FBIOPUT_VSCREENINFO` ioctl, which passes a user-controlled `fb_var_screeninfo` into the driver. The patch is minimal, well-placed, and appropriate for stable backporting. **Verdict: Looks good.** --- Generated by Claude Code Patch Reviewer