| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 065/342] bcache: fix a leak in bch_cached_dev_run() | Date | Tue, 01 Mar 2016 23:54:05 +0000 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Al Viro <viro@ZenIV.linux.org.uk>
commit 4d4d8573a8451acc9f01cbea24b7e55f04a252fe upstream.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Joshua Schmid <jschmid@suse.com> Tested-by: Eric Wheeler <bcache@linux.ewheeler.net> Cc: Kent Overstreet <kmo@daterainc.com> Signed-off-by: Jens Axboe <axboe@fb.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/md/bcache/super.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -849,8 +849,11 @@ void bch_cached_dev_run(struct cached_de buf[SB_LABEL_SIZE] = '\0'; env[2] = kasprintf(GFP_KERNEL, "CACHED_LABEL=%s", buf); - if (atomic_xchg(&dc->running, 1)) + if (atomic_xchg(&dc->running, 1)) { + kfree(env[1]); + kfree(env[2]); return; + } if (!d->c && BDEV_STATE(&dc->sb) != BDEV_STATE_NONE) {
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