/sys/class/infiniband_verbs/uverbs0 is a directory

[ Upstream commit 433425c ]

According to the ABI doc this item supposed to have
sub elements (yes they does) [1]

[1] https://www.kernel.org/doc/Documentation/ABI/stable/sysfs-class-infiniband

Fixes: 39fa824 ("redhat: add udev/systemd/etc infrastructure bits")
Signed-off-by: afazekas <afazekas@redhat.com>
Signed-off-by: Nicolas Morey <nmorey@suse.com>

redhat/rdma.modules-setup.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 check() {
-	[ -n "$hostonly" -a -c /sys/class/infiniband_verbs/uverbs0 ] && return 0
+	[ -n "$hostonly" -a -d /sys/class/infiniband_verbs/uverbs0 ] && return 0
 	[ -n "$hostonly" ] && return 255
 	return 0
 }