[PATCH] ACPI / SBS: Fix check in acpi_ac_get_present()

[Rafael J. Wysocki]

From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

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>
---
 drivers/acpi/sbs.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-pm/drivers/acpi/sbs.c
===================================================================
--- linux-pm.orig/drivers/acpi/sbs.c
+++ linux-pm/drivers/acpi/sbs.c
@@ -441,7 +441,7 @@ static int acpi_ac_get_present(struct ac
 	 * 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;

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