From mboxrd@z Thu Jan 1 00:00:00 1970 From: Claude Code Review Bot To: dri-devel-reviews@example.com Subject: Claude review: drm/panel: himax-hx83121a: Fix NULL vs IS_ERR() check in probe() Date: Sun, 12 Apr 2026 09:51:38 +1000 Message-ID: In-Reply-To: References: X-Mailer: Claude Code Patch Reviewer Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Overall Series Review Subject: drm/panel: himax-hx83121a: Fix NULL vs IS_ERR() check in probe() Author: Dan Carpenter Patches: 2 Reviewed: 2026-04-12T09:51:38.596947 --- This is a single-patch fix from Dan Carpenter / Smatch-CI that corrects an = error-checking bug in the himax-hx83121a panel driver's probe function. The= fix is straightforward, correct, and well-justified. The `devm_drm_panel_alloc()` macro wraps `__devm_drm_panel_alloc()`, which = is documented in `include/drm/drm_panel.h:316` as returning "Pointer to con= tainer structure embedding the panel, **ERR_PTR on failure**." The original= code incorrectly checks for `NULL` return, which can never happen =E2=80= =94 a failure would return an `ERR_PTR`, which is non-NULL and would sail p= ast the `!ctx` check, leading to a crash or undefined behavior when the err= or pointer is subsequently dereferenced. **Verdict: Patch looks good. Recommend applying.** --- Generated by Claude Code Patch Reviewer