media: v4l: cadence: Fix how unsued lanes are handled in 'csi2rx_start()'
commit2eca8e4c1d
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:1fc3b37f34
("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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -129,7 +129,7 @@ static int csi2rx_start(struct csi2rx_priv *csi2rx)
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*/
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for (i = csi2rx->num_lanes; i < csi2rx->max_lanes; i++) {
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unsigned int idx = find_first_zero_bit(&lanes_used,
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sizeof(lanes_used));
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csi2rx->max_lanes);
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set_bit(idx, &lanes_used);
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reg |= CSI2RX_STATIC_CFG_DLANE_MAP(i, i + 1);
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}
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