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Message-Id: <20130203144646.792953565@decadent.org.uk> Date: Sun, 03 Feb 2013 15:47:15 +0100 From: Ben Hutchings <ben@...adent.org.uk> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: akpm@...ux-foundation.org, Axel Lin <axel.lin@...ics.com>, Mark Brown <broonie@...nsource.wolfsonmicro.com> Subject: [ 031/128] regulator: max8998: Ensure enough delay time for max8998_set_voltage_buck_time_sel 3.2-stable review patch. If anyone has any objections, please let me know. ------------------ From: Axel Lin <axel.lin@...ics.com> commit 81d0a6ae7befb24c06f4aa4856af7f8d1f612171 upstream. Use DIV_ROUND_UP to prevent truncation by integer division issue. This ensures we return enough delay time. Signed-off-by: Axel Lin <axel.lin@...ics.com> Signed-off-by: Mark Brown <broonie@...nsource.wolfsonmicro.com> [bwh: Backported to 3.2: delay is done by driver, not returned to the caller] Signed-off-by: Ben Hutchings <ben@...adent.org.uk> --- drivers/regulator/max8998.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/regulator/max8998.c +++ b/drivers/regulator/max8998.c @@ -497,7 +497,7 @@ buck2_exit: difference = desc->min + desc->step*i - previous_vol/1000; if (difference > 0) - udelay(difference / ((val & 0x0f) + 1)); + udelay(DIV_ROUND_UP(difference, (val & 0x0f) + 1)); return ret; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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