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>

diff --git a/drivers/staging/vme/vme.c b/drivers/staging/vme/vme.c
index ca9e4de..994fdb9 100644 (file)
--- a/drivers/staging/vme/vme.c
+++ b/drivers/staging/vme/vme.c
@@ -879,7 +879,7 @@ int vme_dma_list_add(struct vme_dma_list *list, struct vme_dma_attr *src,
                return -EINVAL;
        }
 
-       if (mutex_trylock(&(list->mtx))) {
+       if (!mutex_trylock(&(list->mtx))) {
                printk("Link List already submitted\n");
                return -EINVAL;
        }
@@ -922,7 +922,7 @@ int vme_dma_list_free(struct vme_dma_list *list)
                return -EINVAL;
        }
 
-       if (mutex_trylock(&(list->mtx))) {
+       if (!mutex_trylock(&(list->mtx))) {
                printk("Link List in use\n");
                return -EINVAL;
        }
@@ -955,7 +955,7 @@ int vme_dma_free(struct vme_resource *resource)
 
        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;
        }