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drm/bridge: ti-sn65dsi86: Avoid possible buffer overflow
Smatch error:buffer overflow 'ti_sn_bridge_refclk_lut' 5 <= 5.
Fixes: cea86c5bb4
("drm/bridge: ti-sn65dsi86: Implement the pwm_chip")
Signed-off-by: Su Hui <suhui@nfschina.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608012443.839372-1-suhui@nfschina.com
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@ -298,6 +298,10 @@ static void ti_sn_bridge_set_refclk_freq(struct ti_sn65dsi86 *pdata)
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if (refclk_lut[i] == refclk_rate)
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if (refclk_lut[i] == refclk_rate)
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break;
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break;
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/* avoid buffer overflow and "1" is the default rate in the datasheet. */
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if (i >= refclk_lut_size)
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i = 1;
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regmap_update_bits(pdata->regmap, SN_DPPLL_SRC_REG, REFCLK_FREQ_MASK,
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regmap_update_bits(pdata->regmap, SN_DPPLL_SRC_REG, REFCLK_FREQ_MASK,
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REFCLK_FREQ(i));
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REFCLK_FREQ(i));
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