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From:   Corentin Labbe <clabbe@baylibre.com>
To:     gregkh@linuxfoundation.org, mchehab@kernel.org, hverkuil@xs4all.nl,
        laurent.pinchart@ideasonboard.com
Cc:     devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
        linux-media@vger.kernel.org, Corentin Labbe <clabbe@baylibre.com>
Subject: [PATCH RFT/RFC v2 15/47] staging: media: zoran: do not print random guest 0
Date:   Fri, 25 Sep 2020 18:30:25 +0000
Message-Id: <1601058657-14042-16-git-send-email-clabbe@baylibre.com>
In-Reply-To: <1601058657-14042-1-git-send-email-clabbe@baylibre.com>
References: <1601058657-14042-1-git-send-email-clabbe@baylibre.com>
Precedence: bulk

The slot 0 of guest is never initialized and so we print later random
data.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
---
 drivers/staging/media/zoran/zoran_device.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/staging/media/zoran/zoran_device.c b/drivers/staging/media/zoran/zoran_device.c
index 04ba22a915f0..dfc2551f2d71 100644
--- a/drivers/staging/media/zoran/zoran_device.c
+++ b/drivers/staging/media/zoran/zoran_device.c
@@ -158,6 +158,9 @@ static void dump_guests(struct zoran *zr)
 	if (zr36067_debug > 2) {
 		int i, guest[8];
 
+		/* do not print random data */
+		guest[0] = 0;
+
 		for (i = 1; i < 8; i++) /* Don't read jpeg codec here */
 			guest[i] = post_office_read(zr, i, 0);
 
@@ -170,6 +173,10 @@ void detect_guest_activity(struct zoran *zr)
 	int timeout, i, j, res, guest[8], guest0[8], change[8][3];
 	ktime_t t0, t1;
 
+	/* do not print random data */
+	guest[0] = 0;
+	guest0[0] = 0;
+
 	dump_guests(zr);
 	pci_info(zr->pci_dev, "Detecting guests activity, please wait...\n");
 	for (i = 1; i < 8; i++) /* Don't read jpeg codec here */
-- 
2.26.2