From: Mark Rustad <Rustad@gmail.com>
Date: Thu, 10 Jul 2008 19:27:11 +0000 (-0500)
Subject: [PATCH] IPMI: return correct value from ipmi_write
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3976df9b04c113ab19dc0268e49c6cec6baf28f7;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[PATCH] IPMI: return correct value from ipmi_write

This patch corrects the handling of write operations to the IPMI watchdog
to work as intended by returning the number of characters actually
processed. Without this patch, an "echo V >/dev/watchdog" enables the
watchdog if IPMI is providing the watchdog function.

Signed-off-by: Mark Rustad <MRustad@gmail.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---

diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c
index 1b9a87047817..0e6df289cb46 100644
--- a/drivers/char/ipmi/ipmi_watchdog.c
+++ b/drivers/char/ipmi/ipmi_watchdog.c
@@ -755,9 +755,8 @@ static ssize_t ipmi_write(struct file *file,
 		rv = ipmi_heartbeat();
 		if (rv)
 			return rv;
-		return 1;
 	}
-	return 0;
+	return len;
 }
 
 static ssize_t ipmi_read(struct file *file,