From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Date: Thu, 8 Mar 2007 04:41:13 +0000 (-0800)
Subject: [PATCH] uml: activate_fd: return ENOMEM only when appropriate
X-Git-Tag: v2.6.21-rc4~91
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0f97869df672f7f05ce3e8672ca42792d6df852b;p=linux-2.6

[PATCH] uml: activate_fd: return ENOMEM only when appropriate

Avoid returning ENOMEM in case of a duplicate IRQ - ENOMEM was saved into err
earlier.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index 50a288bb87..dbf2f5bc84 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -142,6 +142,7 @@ int activate_fd(int irq, int fd, int type, void *dev_id)
 				     .events 		= events,
 				     .current_events 	= 0 } );
 
+	err = -EBUSY;
 	spin_lock_irqsave(&irq_lock, flags);
 	for (irq_fd = active_fds; irq_fd != NULL; irq_fd = irq_fd->next) {
 		if ((irq_fd->fd == fd) && (irq_fd->type == type)) {