| From a3b17ebcef29d57d55202e9ff7f56bebbeb3ce63 Mon Sep 17 00:00:00 2001 |
| From: Christophe JAILLET <christophe.jaillet@wanadoo.fr> |
| Date: Fri, 13 Sep 2019 16:06:47 -0300 |
| Subject: [PATCH] media: v4l: cadence: Fix how unsued lanes are handled in |
| 'csi2rx_start()' |
| |
| commit 2eca8e4c1df4864b937752c3aa2f7925114f4806 upstream. |
| |
| The 2nd parameter of 'find_first_zero_bit()' is a number of bits, not of |
| bytes. So use 'csi2rx->max_lanes' instead of 'sizeof(lanes_used)'. |
| |
| Fixes: 1fc3b37f34f6 ("media: v4l: cadence: Add Cadence MIPI-CSI2 RX driver") |
| Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> |
| Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> |
| Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> |
| Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c |
| index 31ace114eda1..be9ec59774d6 100644 |
| --- a/drivers/media/platform/cadence/cdns-csi2rx.c |
| +++ b/drivers/media/platform/cadence/cdns-csi2rx.c |
| @@ -129,7 +129,7 @@ static int csi2rx_start(struct csi2rx_priv *csi2rx) |
| */ |
| for (i = csi2rx->num_lanes; i < csi2rx->max_lanes; i++) { |
| unsigned int idx = find_first_zero_bit(&lanes_used, |
| - sizeof(lanes_used)); |
| + csi2rx->max_lanes); |
| set_bit(idx, &lanes_used); |
| reg |= CSI2RX_STATIC_CFG_DLANE_MAP(i, i + 1); |
| } |
| -- |
| 2.7.4 |
| |
