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Mon, 19 Oct 2026 02:49:14 -0700 (PDT) Received: from DESKTOP-0KSTGNI.localdomain ([156.213.131.39]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a1ce02d619sm177669655e9.3.2026.10.19.02.49.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Oct 2026 02:49:14 -0700 (PDT) From: Temitope obabi To: sudipm.mukherjee@gmail.com, teddy.wang@siliconmotion.com, gregkh@linuxfoundation.org Cc: linux-fbdev@vger.kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, outreachy@lists.linux.dev, julia.lawall@inria.fr, Temitope obabi Subject: [PATCH] staging: sm750fb: Remove redundant NULL and zero assignments in probe Date: Mon, 19 Oct 2026 12:48:35 +0300 Message-ID: <20261019094835.1343-1-obabitemitope765@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The sm750_dev structure is allocated with devm_kzalloc() just above, so its memory is already zeroed. Remove the explicit NULL assignments to fbinfo[0] and fbinfo[1] and the zero assignment to mtrr.vram, which only set fields that are already zero. Signed-off-by: Temitope obabi --- Note: Greg replied to my earlier sm750fb patch that keeping the explicit zero assignments is good because it is clear what is happening. In that patch the allocation was in a different function. Here the assignments are in lynxfb_pci_probe(), just after the devm_kzalloc() call and its NULL check, so I think removing them may still be useful. drivers/staging/sm750fb/sm750.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c index 8b93bfeb217b..8702f6313f78 100644 --- a/drivers/staging/sm750fb/sm750.c +++ b/drivers/staging/sm750fb/sm750.c @@ -969,13 +969,10 @@ static int lynxfb_pci_probe(struct pci_dev *pdev, if (!sm750_dev) return err; - sm750_dev->fbinfo[0] = NULL; - sm750_dev->fbinfo[1] = NULL; sm750_dev->devid = pdev->device; sm750_dev->revid = pdev->revision; sm750_dev->pdev = pdev; sm750_dev->mtrr_off = g_nomtrr; - sm750_dev->mtrr.vram = 0; sm750_dev->accel_off = g_noaccel; spin_lock_init(&sm750_dev->slock); -- 2.53.0 Note: Greg replied to my earlier sm750fb patch that keeping the explicit zero assignments is good because it is clear what is happening. In that patch the allocation was in a different function. Here the assignments are in lynxfb_pci_probe(), just after the devm_kzalloc() call and its NULL check, so I think removing them may still be useful