From patchwork Fri Dec 20 14:41:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 852664 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EF4BA2185A4 for ; Fri, 20 Dec 2024 14:42:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734705723; cv=none; b=QWwcoNColMXeELFhROwIfmjPviPajKWLZCqmpogr3zD8vODGZdQlaHTTysrDhzSnFfJDEI80f6l9Jadc7TyRbWPXcalL9yiPrGD2q8we5Em17Cs/5OHOo1uefLLPyCQYFFvxEGFwKr+W211SMT/Pnf0N09MRtKizcdXUEcYiteQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734705723; c=relaxed/simple; bh=snSjHXnZpNhsDn2iUZ4O6a4vEzqQsA6t/Gi4s6XkoHE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Q9j+1UoCtcmaz0YlYgnm+5klNG/njpC5pzwo8s4aiBSRWf5gfvfFZUlwdW1xddYEri+dzHkH5bkKJpCdmvu9OzO7Y/X0UL9Mv6VhwTJ8GTO5orNHZaLyqL1FKDHJVTLmfzodn7+8tkvfZf2xh+EYL2ZqOyuETkKJFD4G7j+dgLs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=ThIC7h83; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ThIC7h83" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1734705721; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=r2eBgYZUkWOHjCvjJbUprRewqayE/iArLk0RD3FHKkc=; b=ThIC7h83ae8yKCUDPtLm7ywWJBznGjmkHm3bYKPFMzBIpw+ggcPoaULOZ4QJhAD2YcUaWe SyjZnlfrtcFf+ZhpjS75kjbux++vRZYedBID5dpmkTmTp33VX1x53SA8Np5su9YuN3ll9s jZ73+bT4HJ8Q1uR+qF/D/fBpqTQyetw= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-125-KALhif2vPJet5iy1Kez_SQ-1; Fri, 20 Dec 2024 09:41:57 -0500 X-MC-Unique: KALhif2vPJet5iy1Kez_SQ-1 X-Mimecast-MFC-AGG-ID: KALhif2vPJet5iy1Kez_SQ Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id A6DC41955F42; Fri, 20 Dec 2024 14:41:56 +0000 (UTC) Received: from localhost.localdomain (unknown [10.39.193.74]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id E6BAB19560AD; Fri, 20 Dec 2024 14:41:54 +0000 (UTC) From: Hans de Goede To: Sakari Ailus , Jason Chen , Bryan O'Donoghue Cc: Hans de Goede , Mauro Carvalho Chehab , linux-media@vger.kernel.org Subject: [PATCH v2 07/10] media: ov08x40: Improve ov08x40_[read|write]_reg() error returns Date: Fri, 20 Dec 2024 15:41:27 +0100 Message-ID: <20241220144130.66765-8-hdegoede@redhat.com> In-Reply-To: <20241220144130.66765-1-hdegoede@redhat.com> References: <20241220144130.66765-1-hdegoede@redhat.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Improve ov08x40_[read|write]_reg() error returns, if we got an errno value from the I2C core use that instead of always returning -EIO. Tested-by: Bryan O'Donoghue Signed-off-by: Hans de Goede --- drivers/media/i2c/ov08x40.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/media/i2c/ov08x40.c b/drivers/media/i2c/ov08x40.c index 10ec9896ca61..39430528f54f 100644 --- a/drivers/media/i2c/ov08x40.c +++ b/drivers/media/i2c/ov08x40.c @@ -1394,7 +1394,7 @@ static int ov08x40_read_reg(struct ov08x40 *ov08x, ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); if (ret != ARRAY_SIZE(msgs)) - return -EIO; + return ret < 0 ? ret : -EIO; *val = be32_to_cpu(data_be); @@ -1463,7 +1463,7 @@ static int ov08x40_write_reg(struct ov08x40 *ov08x, u16 reg, u32 len, u32 __val) { struct i2c_client *client = v4l2_get_subdevdata(&ov08x->sd); - int buf_i, val_i; + int buf_i, val_i, ret; u8 buf[6], *val_p; __be32 val; @@ -1481,8 +1481,9 @@ static int ov08x40_write_reg(struct ov08x40 *ov08x, while (val_i < 4) buf[buf_i++] = val_p[val_i++]; - if (i2c_master_send(client, buf, len + 2) != len + 2) - return -EIO; + ret = i2c_master_send(client, buf, len + 2); + if (ret != len + 2) + return ret < 0 ? ret : -EIO; return 0; }