From: Wei Yongjun <[email protected]> Fix to return -ENOMEM from the error handling case instead of 0 (overwrited to 0 by the HYPERVISOR_event_channel_op call), otherwise the error condition cann't be reflected from the return value.
Signed-off-by: Wei Yongjun <[email protected]> --- drivers/xen/events/events_fifo.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/xen/events/events_fifo.c b/drivers/xen/events/events_fifo.c index e2bf957..89e4893 100644 --- a/drivers/xen/events/events_fifo.c +++ b/drivers/xen/events/events_fifo.c @@ -109,7 +109,7 @@ static int evtchn_fifo_setup(struct irq_info *info) { unsigned port = info->evtchn; unsigned new_array_pages; - int ret = -ENOMEM; + int ret; new_array_pages = port / EVENT_WORDS_PER_PAGE + 1; @@ -124,8 +124,10 @@ static int evtchn_fifo_setup(struct irq_info *info) array_page = event_array[event_array_pages]; if (!array_page) { array_page = (void *)__get_free_page(GFP_KERNEL); - if (array_page == NULL) + if (array_page == NULL) { + ret = -ENOMEM; goto error; + } event_array[event_array_pages] = array_page; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
