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Commit 3734f785 authored by Bernhard Walle's avatar Bernhard Walle Committed by Greg Kroah-Hartman
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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: default avatarBernhard Walle <bernhard@bwalle.de>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent ef77d83f

drivers/misc/bmp085.c

+2 −1
Original line number Diff line number Diff line
@@ -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;