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Revert "jfs: fix log->bdev_handle null ptr deref in lbmStartIO"

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This reverts commit e4a4435787 which is
commit 6306ff39a7 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: I2845dc3c8915a89970201a26fe3d4da1684c9e60
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Greg Kroah-Hartman 2024-08-30 08:10:56 +00:00
parent d09a1b6c70
commit a1f8d07b9e
1 changed files with 1 additions and 5 deletions
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6
fs/jfs/jfs_logmgr.c
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@ -2110,14 +2110,10 @@ static void lbmStartIO(struct lbuf * bp)
{
struct bio *bio;
struct jfs_log *log = bp->l_log;
struct block_device *bdev = NULL;
jfs_info("lbmStartIO");
if (!log->no_integrity)
bdev = log->bdev_handle->bdev;
bio = bio_alloc(bdev, 1, REQ_OP_WRITE | REQ_SYNC,
bio = bio_alloc(log->bdev_handle->bdev, 1, REQ_OP_WRITE | REQ_SYNC,
GFP_NOFS);
bio->bi_iter.bi_sector = bp->l_blkno << (log->l2bsize - 9);
__bio_add_page(bio, bp->l_page, LOGPSIZE, bp->l_offset);