EDAC, thunderx: Fix a warning during l2c debugfs node creation

Compare the number of debugfs entries created by
thunderx_create_debugfs_nodes() with the requested number of entries to
properly determine whether to print a warning.

Signed-off-by: Vadim Lomovtsev <[e-mail]>
Cc: linux-edac <[e-mail]>
Cc: [e-mail]
Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: Sergey Temerkhanov <[e-mail]>
Signed-off-by: Borislav Petkov <[e-mail]>

drivers/edac/thunderx_edac.c

···
 	if (IS_ENABLED(CONFIG_EDAC_DEBUG)) {
 		l2c->debugfs = edac_debugfs_create_dir(pdev->dev.kobj.name);
 
-		thunderx_create_debugfs_nodes(l2c->debugfs, l2c_devattr,
+		ret = thunderx_create_debugfs_nodes(l2c->debugfs, l2c_devattr,
 					      l2c, dfs_entries);
 
 		if (ret != dfs_entries) {