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>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/md/dm-log-userspace-transfer.c b/drivers/md/dm-log-userspace-transfer.c
index 39ad9664d397..fdf8ec304f8d 100644
--- 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),