Commit 0d7ef45c authored by Wolfram Sang's avatar Wolfram Sang Committed by David S. Miller

ide: palm_bk3710: test clock rate to avoid division by 0

The clk API may return 0 on clk_get_rate, so we should check the result before
using it as a divisor.
Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent eccf432f
...@@ -325,6 +325,8 @@ static int __init palm_bk3710_probe(struct platform_device *pdev) ...@@ -325,6 +325,8 @@ static int __init palm_bk3710_probe(struct platform_device *pdev)
clk_enable(clk); clk_enable(clk);
rate = clk_get_rate(clk); rate = clk_get_rate(clk);
if (!rate)
return -EINVAL;
/* NOTE: round *down* to meet minimum timings; we count in clocks */ /* NOTE: round *down* to meet minimum timings; we count in clocks */
ideclk_period = 1000000000UL / rate; ideclk_period = 1000000000UL / rate;
......
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