From: David Howells <dhowells@redhat.com>
To: Christian Brauner <christian@brauner.io>
Cc: David Howells <dhowells@redhat.com>,
Jeff Layton <jlayton@kernel.org>,
Matthew Wilcox <willy@infradead.org>,
netfs@lists.linux.dev, linux-afs@lists.infradead.org,
linux-cifs@vger.kernel.org, linux-nfs@vger.kernel.org,
ceph-devel@vger.kernel.org, v9fs@lists.linux.dev,
linux-erofs@lists.ozlabs.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Dan Carpenter <dan.carpenter@linaro.org>
Subject: [PATCH 05/10] netfs: Fix a NULL vs IS_ERR() check in netfs_perform_write()
Date: Mon, 22 Jan 2024 12:38:38 +0000 [thread overview]
Message-ID: <20240122123845.3822570-6-dhowells@redhat.com> (raw)
In-Reply-To: <20240122123845.3822570-1-dhowells@redhat.com>
From: Dan Carpenter <dan.carpenter@linaro.org>
The netfs_grab_folio_for_write() function doesn't return NULL, it returns
error pointers. Update the check accordingly.
Fixes: c38f4e96e605 ("netfs: Provide func to copy data to pagecache for buffered write")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/29fb1310-8e2d-47ba-b68d-40354eb7b896@moroto.mountain/
---
fs/netfs/buffered_write.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/netfs/buffered_write.c b/fs/netfs/buffered_write.c
index e7f9ba6fb16b..a3059b3168fd 100644
--- a/fs/netfs/buffered_write.c
+++ b/fs/netfs/buffered_write.c
@@ -221,10 +221,11 @@ ssize_t netfs_perform_write(struct kiocb *iocb, struct iov_iter *iter,
if (unlikely(fault_in_iov_iter_readable(iter, part) == part))
break;
- ret = -ENOMEM;
folio = netfs_grab_folio_for_write(mapping, pos, part);
- if (!folio)
+ if (IS_ERR(folio)) {
+ ret = PTR_ERR(folio);
break;
+ }
flen = folio_size(folio);
offset = pos & (flen - 1);
next prev parent reply other threads:[~2024-01-22 12:39 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-22 12:38 [PATCH 00/10] netfs, afs, cifs, cachefiles, erofs: Miscellaneous fixes David Howells
2024-01-22 12:38 ` [PATCH 01/10] netfs: Don't use certain internal folio_*() functions David Howells
2024-01-22 15:38 ` Jeff Layton
2024-01-22 16:10 ` Matthew Wilcox
2024-01-22 17:22 ` David Howells
2024-01-22 12:38 ` [PATCH 02/10] afs: " David Howells
2024-01-22 12:38 ` [PATCH 03/10] cifs: " David Howells
2024-01-22 12:38 ` [PATCH 04/10] netfs, fscache: Prevent Oops in fscache_put_cache() David Howells
2024-01-22 12:38 ` David Howells [this message]
2024-01-22 12:38 ` [PATCH 06/10] cachefiles, erofs: Fix NULL deref in when cachefiles is not doing ondemand-mode David Howells
2024-01-22 13:48 ` Jingbo Xu
2024-01-22 15:27 ` Gao Xiang
2024-01-22 22:01 ` David Howells
2024-01-22 12:38 ` [PATCH 07/10] afs: Hide silly-rename files from userspace David Howells
2024-01-22 12:38 ` [PATCH 08/10] afs: Fix error handling with lookup via FS.InlineBulkStatus David Howells
2024-01-22 12:38 ` [PATCH 09/10] afs: Remove afs_dynroot_d_revalidate() as it is redundant David Howells
2024-01-22 12:38 ` [PATCH 10/10] afs: Fix missing/incorrect unlocking of RCU read lock David Howells
2024-01-22 15:18 ` [PATCH 00/10] netfs, afs, cifs, cachefiles, erofs: Miscellaneous fixes Christian Brauner
2024-01-23 15:03 ` Christian Brauner
2024-01-22 15:57 ` Jeff Layton
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