From: yu kuai yukuai3@huawei.com
commit a75ca9303175d36af93c0937dd9b1a6422908b8d upstream.
commit e7bf90e5afe3 ("block/bio-integrity: fix a memory leak bug") added a kfree() for 'buf' if bio_integrity_add_page() returns '0'. However, the object will be freed in bio_integrity_free() since 'bio->bi_opf' and 'bio->bi_integrity' were set previousy in bio_integrity_alloc().
Fixes: commit e7bf90e5afe3 ("block/bio-integrity: fix a memory leak bug") Signed-off-by: yu kuai yukuai3@huawei.com Reviewed-by: Ming Lei ming.lei@redhat.com Reviewed-by: Bob Liu bob.liu@oracle.com Acked-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Jens Axboe axboe@kernel.dk Cc: Guenter Roeck linux@roeck-us.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- block/bio-integrity.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/block/bio-integrity.c b/block/bio-integrity.c index 7f80106624375..d3df44c3b43af 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c @@ -315,7 +315,6 @@ bool bio_integrity_prep(struct bio *bio)
if (ret == 0) { printk(KERN_ERR "could not attach integrity payload\n"); - kfree(buf); status = BLK_STS_RESOURCE; goto err_end_io; }