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[34.86.135.125]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6a15f194945sm8623726d6.61.2024.05.09.10.05.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 May 2024 10:05:56 -0700 (PDT) From: Ricardo Ribalda Date: Thu, 09 May 2024 17:05:55 +0000 Subject: [PATCH] media: i2c: hi846: Fix V4L2_SUBDEV_FORMAT_TRY get_selection() Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240509-fix-hi846-v1-1-1e19dc517be1@chromium.org> X-B4-Tracking: v=1; b=H4sIAHICPWYC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIxMDUwNL3bTMCt2MTAsTM91k4xRzc3MzCzMjo1QloPqColSgJNis6NjaWgB MN32WWwAAAA== To: Sakari Ailus , Martin Kepplinger , Mauro Carvalho Chehab , Pavel Machek Cc: Mauro Carvalho Chehab , Laurent Pinchart , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Ricardo Ribalda X-Mailer: b4 0.12.4 X-LSpam-Score: -5.9 (-----) X-LSpam-Report: No, score=-5.9 required=5.0 tests=ARC_SIGNED=0.001,ARC_VALID=-0.1,BAYES_00=-1.9,DKIMWL_WL_HIGH=-1,DKIM_SIGNED=0.1,DKIM_VALID=-0.1,DKIM_VALID_AU=-0.1,DMARC_PASS=-0.001,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1,RCVD_IN_DNSWL_MED=-2.3,SPF_HELO_NONE=0.001,SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no The current code does not return anything to the user. Although the code looks a bit dangerous (using a pointer without checking if it is valid), it should be fine. The code validates that sel->pad has a valid value. Fix the following smatch error: drivers/media/i2c/hi846.c:1854 hi846_get_selection() warn: statement has no effect 31 Fixes: e8c0882685f9 ("media: i2c: add driver for the SK Hynix Hi-846 8M pixel camera") Signed-off-by: Ricardo Ribalda Reviewed-by: Laurent Pinchart --- While running media-ci on the last patches there was a new sparse warning: https://gitlab.freedesktop.org/linux-media/users/patchwork/-/jobs/58524338/artifacts/external_file/junit/test-smatch.log.txt --- drivers/media/i2c/hi846.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- base-commit: 48259b90973718d2277db27b5e510f0fe957eaa0 change-id: 20240509-fix-hi846-c3d77768622e Best regards, diff --git a/drivers/media/i2c/hi846.c b/drivers/media/i2c/hi846.c index 9c565ec033d4..52d9ca68a86c 100644 --- a/drivers/media/i2c/hi846.c +++ b/drivers/media/i2c/hi846.c @@ -1851,7 +1851,7 @@ static int hi846_get_selection(struct v4l2_subdev *sd, mutex_lock(&hi846->mutex); switch (sel->which) { case V4L2_SUBDEV_FORMAT_TRY: - v4l2_subdev_state_get_crop(sd_state, sel->pad); + sel->r = *v4l2_subdev_state_get_crop(sd_state, sel->pad); break; case V4L2_SUBDEV_FORMAT_ACTIVE: sel->r = hi846->cur_mode->crop;