Commit 0d7ef45c authored Mar 02, 2016 by Wolfram Sang Committed by David S. Miller Mar 20, 2016

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: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent eccf432f

drivers/ide/palm_bk3710.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -325,6 +325,8 @@ static int __init palm_bk3710_probe(struct platform_device *pdev)

		clk_enable(clk);
		rate = clk_get_rate(clk);
		if (!rate)
		return -EINVAL;

		/* NOTE: round down to meet minimum timings; we count in clocks */
		ideclk_period = 1000000000UL / rate;