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Date: Sun, 19 Feb 2012 18:28:01 +0100 From: Bernhard Walle <bernhard@...lle.de> To: christoph.mair@...il.com Cc: arnd@...db.de, gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org Subject: [PATCH] misc: bmp085: Handle jiffies overflow correctly By using the time_is_before_jiffies() macro instead of normal arithmetic, the jiffies overflow is handled correctly. Signed-off-by: Bernhard Walle <bernhard@...lle.de> --- drivers/misc/bmp085.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/misc/bmp085.c b/drivers/misc/bmp085.c index b29a2be..7cfc598 100644 --- a/drivers/misc/bmp085.c +++ b/drivers/misc/bmp085.c @@ -234,7 +234,8 @@ static s32 bmp085_get_pressure(struct bmp085_data *data, int *pressure) int status; /* alt least every second force an update of the ambient temperature */ - if (data->last_temp_measurement + 1*HZ < jiffies) { + if (data->last_temp_measurement == 0 || + time_is_before_jiffies(data->last_temp_measurement + 1*HZ)) { status = bmp085_get_temperature(data, NULL); if (status != 0) goto exit; -- 1.7.9.1 -- 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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