From: Pavel Machek <pavel@ucw.cz>
Date: Mon, 17 Oct 2005 23:43:31 +0000 (-0700)
Subject: [PATCH] Fix /proc/acpi/events around suspend
X-Git-Tag: firefly_0821_release~39876^2~50^2~31
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=5cc9eeef9a9567acdfc2f6943f24381bf460f008;p=firefly-linux-kernel-4.4.55.git

[PATCH] Fix /proc/acpi/events around suspend

Fix -EIO on /proc/acpi/events after suspends.  This actually breaks
suspending by power button in many setups.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index bfa8b76de403..2dbb1b0f11d5 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -58,9 +58,8 @@ acpi_system_read_event(struct file *file, char __user * buffer, size_t count,
 			return_VALUE(-EAGAIN);
 
 		result = acpi_bus_receive_event(&event);
-		if (result) {
-			return_VALUE(-EIO);
-		}
+		if (result)
+			return_VALUE(result);
 
 		chars_remaining = sprintf(str, "%s %s %08x %08x\n",
 					  event.device_class ? event.