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authorKent Overstreet <kent.overstreet@linux.dev>2024-06-22 17:22:24 -0400
committerKent Overstreet <kent.overstreet@linux.dev>2024-06-22 17:22:24 -0400
commit9bd01500e4d8c3c3387076581c19b3987776d7af (patch)
treef538372373e54803ac177174455caf4066a7a88a /fs/bcachefs
parentbd4da0462ea7bf26b2a5df5528ec20c550f7ec41 (diff)
bcachefs: Fix freeing of error pointers
This fixes incorrect/missign checking of strndup_user() returns. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs')
-rw-r--r--fs/bcachefs/chardev.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/bcachefs/chardev.c b/fs/bcachefs/chardev.c
index 9e54323f0f5f..6d82e1165adc 100644
--- a/fs/bcachefs/chardev.c
+++ b/fs/bcachefs/chardev.c
@@ -216,7 +216,8 @@ static long bch2_ioctl_fsck_offline(struct bch_ioctl_fsck_offline __user *user_a
ret = PTR_ERR_OR_ZERO(optstr) ?:
bch2_parse_mount_opts(NULL, &thr->opts, optstr);
- kfree(optstr);
+ if (!IS_ERR(optstr))
+ kfree(optstr);
if (ret)
goto err;
@@ -319,7 +320,8 @@ static long bch2_ioctl_disk_add(struct bch_fs *c, struct bch_ioctl_disk arg)
return ret;
ret = bch2_dev_add(c, path);
- kfree(path);
+ if (!IS_ERR(path))
+ kfree(path);
return ret;
}
@@ -850,7 +852,8 @@ static long bch2_ioctl_fsck_online(struct bch_fs *c,
ret = PTR_ERR_OR_ZERO(optstr) ?:
bch2_parse_mount_opts(c, &thr->opts, optstr);
- kfree(optstr);
+ if (!IS_ERR(optstr))
+ kfree(optstr);
if (ret)
goto err;