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video: rk3399_mipi: correct error checking
Pointers are never negative. Use macro IS_ERR() for checking. cf. rk3288_mipi.c Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
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@ -128,7 +128,7 @@ static int rk_mipi_ofdata_to_platdata(struct udevice *dev)
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struct rk_mipi_priv *priv = dev_get_priv(dev);
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struct rk_mipi_priv *priv = dev_get_priv(dev);
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priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
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priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
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if (priv->grf <= 0) {
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if (!priv->grf || IS_ERR(priv->grf)) {
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debug("%s: Get syscon grf failed (ret=%p)\n",
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debug("%s: Get syscon grf failed (ret=%p)\n",
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__func__, priv->grf);
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__func__, priv->grf);
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return -ENXIO;
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return -ENXIO;
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