The patch below does not apply to the 3.17-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable@xxxxxxxxxxxxxxx>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 5159e39bdf119613adc6556901ae2d2e5e027551 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" <rafael.j.wysocki@xxxxxxxxx> Date: Sun, 28 Sep 2014 01:27:42 +0200 Subject: [PATCH] ACPI / SBS: Fix check in acpi_ac_get_present() Parentheses are missing under an if () statement in acpi_ac_get_present() which makes the check work differently from what was intended (at least according to the comment right above it). Add the missing parens. The problem was found by sparse. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> Cc: All applicable <stable@xxxxxxxxxxxxxxx> diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index 32aeceae10e3..a7a3edd28beb 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -441,7 +441,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs) * The spec requires that bit 4 always be 1. If it's not set, assume * that the implementation doesn't support an SBS charger */ - if (!(status >> 4) & 0x1) + if (!((status >> 4) & 0x1)) return -ENODEV; sbs->charger_present = (status >> 15) & 0x1; -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html