Commit 0b045bd1 authored Sep 11, 2017 by Christophe JAILLET Committed by Jens Axboe Sep 11, 2017

mm/backing-dev.c: fix an error handling path in 'cgwb_create()'



If the 'kmalloc' fails, we must go through the existing error handling
path.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Fixes: 52ebea74 ("writeback: make backing_dev_info host cgroup-specific bdi_writebacks")
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent 09c2c359

mm/backing-dev.c

+4 −2

Original line number	Diff line number	Diff line
		@@ -569,8 +569,10 @@ static int cgwb_create(struct backing_dev_info *bdi,

		/* need to create a new one */
		wb = kmalloc(sizeof(*wb), gfp);
		if (!wb)
		return -ENOMEM;
		if (!wb) {
		ret = -ENOMEM;
		goto out_put;
		}

		ret = wb_init(wb, bdi, blkcg_css->id, gfp);
		if (ret)