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>
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58e507987b
Коммит
a5c330fe8b
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@ -879,7 +879,7 @@ int vme_dma_list_add(struct vme_dma_list *list, struct vme_dma_attr *src,
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return -EINVAL;
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}
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if (mutex_trylock(&(list->mtx))) {
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if (!mutex_trylock(&(list->mtx))) {
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printk("Link List already submitted\n");
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return -EINVAL;
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}
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@ -922,7 +922,7 @@ int vme_dma_list_free(struct vme_dma_list *list)
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return -EINVAL;
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}
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if (mutex_trylock(&(list->mtx))) {
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if (!mutex_trylock(&(list->mtx))) {
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printk("Link List in use\n");
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return -EINVAL;
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}
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@ -955,7 +955,7 @@ int vme_dma_free(struct vme_resource *resource)
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ctrlr = list_entry(resource->entry, struct vme_dma_resource, list);
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if (mutex_trylock(&(ctrlr->mtx))) {
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if (!mutex_trylock(&(ctrlr->mtx))) {
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printk("Resource busy, can't free\n");
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return -EBUSY;
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}
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