commit a5c330fe8b2f1e17133190e0b297a710c5a4de04
author Martyn Welch <martyn.welch@gefanuc.com> Thu Oct 29 16:35:27 2009 +0000
committer Greg Kroah-Hartman <gregkh@suse.de> Fri Dec 11 12:23:18 2009 -0800
tree 35dee52cf4e500101f9267984a8e17ce416f77fc
parent 58e507987b285f3df99f839c79da3985555ac220

staging: vme: Fix mutex locking

Fix incorrect use of mutex_trylock().

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/vme/vme.c

diff --git a/drivers/staging/vme/vme.c b/drivers/staging/vme/vme.c
index ca9e4de..994fdb9 100644
--- a/drivers/staging/vme/vme.c
+++ b/drivers/staging/vme/vme.c
@@ -879,7 +879,7 @@
 		return -EINVAL;
 	}
 
-	if (mutex_trylock(&(list->mtx))) {
+	if (!mutex_trylock(&(list->mtx))) {
 		printk("Link List already submitted\n");
 		return -EINVAL;
 	}
@@ -922,7 +922,7 @@
 		return -EINVAL;
 	}
 
-	if (mutex_trylock(&(list->mtx))) {
+	if (!mutex_trylock(&(list->mtx))) {
 		printk("Link List in use\n");
 		return -EINVAL;
 	}
@@ -955,7 +955,7 @@
 
 	ctrlr = list_entry(resource->entry, struct vme_dma_resource, list);
 
-	if (mutex_trylock(&(ctrlr->mtx))) {
+	if (!mutex_trylock(&(ctrlr->mtx))) {
 		printk("Resource busy, can't free\n");
 		return -EBUSY;
 	}