dm log userspace transfer: match wait_for_completion_timeout return type

Return type of wait_for_completion_timeout() is unsigned long not int.
An appropriately named unsigned long is added and the assignment fixed.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

diff --git a/drivers/md/dm-log-userspace-transfer.c b/drivers/md/dm-log-userspace-transfer.c
index 39ad9664d39731022796430b0a3a30b7a8464898..fdf8ec304f8d26ae0cd45600e985ab3d845b47df 100644 (file)
--- a/drivers/md/dm-log-userspace-transfer.c
+++ b/drivers/md/dm-log-userspace-transfer.c
@@ -172,6 +172,7 @@ int dm_consult_userspace(const char *uuid, uint64_t luid, int request_type,
                         char *rdata, size_t *rdata_size)
 {
        int r = 0;
+       unsigned long tmo;
        size_t dummy = 0;
        int overhead_size = sizeof(struct dm_ulog_request) + sizeof(struct cn_msg);
        struct dm_ulog_request *tfr = prealloced_ulog_tfr;
@@ -236,11 +237,11 @@ resend:
                goto out;
        }
 
-       r = wait_for_completion_timeout(&(pkg.complete), DM_ULOG_RETRY_TIMEOUT);
+       tmo = wait_for_completion_timeout(&(pkg.complete), DM_ULOG_RETRY_TIMEOUT);
        spin_lock(&receiving_list_lock);
        list_del_init(&(pkg.list));
        spin_unlock(&receiving_list_lock);
-       if (!r) {
+       if (!tmo) {
                DMWARN("[%s] Request timed out: [%u/%u] - retrying",
                       (strlen(uuid) > 8) ?
                       (uuid + (strlen(uuid) - 8)) : (uuid),