iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

staging: vme: Fix mutex locking

Browse Source 
Fix incorrect use of mutex_trylock().

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Martyn Welch 2009-10-29 16:35:27 +00:00 committed by Greg Kroah-Hartman
parent 58e507987b
commit a5c330fe8b
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/staging/vme/vme.c
View File

@ -879,7 +879,7 @@ int vme_dma_list_add(struct vme_dma_list *list, struct vme_dma_attr *src,
return -EINVAL; return -EINVAL;
} }
if (mutex_trylock(&(list->mtx))) { if (!mutex_trylock(&(list->mtx))) {
printk("Link List already submitted\n"); printk("Link List already submitted\n");
return -EINVAL; return -EINVAL;
} }
@ -922,7 +922,7 @@ int vme_dma_list_free(struct vme_dma_list *list)
return -EINVAL; return -EINVAL;
} }
if (mutex_trylock(&(list->mtx))) { if (!mutex_trylock(&(list->mtx))) {
printk("Link List in use\n"); printk("Link List in use\n");
return -EINVAL; return -EINVAL;
} }
@ -955,7 +955,7 @@ int vme_dma_free(struct vme_resource *resource)
ctrlr = list_entry(resource->entry, struct vme_dma_resource, list); 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"); printk("Resource busy, can't free\n");
return -EBUSY; return -EBUSY;
} }