diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2024-11-17 01:38:33 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-11-17 17:01:35 +0100 |
| commit | a652958888fb1ada3e4f6b548576c2d2c1b60d66 (patch) | |
| tree | 3da5558219a7e8f0efd794a2ef97023fdbb078a8 /io_uring | |
| parent | io_uring: restore back registered wait arguments (diff) | |
| download | linux-a652958888fb1ada3e4f6b548576c2d2c1b60d66.tar.xz linux-a652958888fb1ada3e4f6b548576c2d2c1b60d66.zip | |
io_uring/region: fix error codes after failed vmap
io_create_region() jumps after a vmap failure without setting the return
code, it could be 0 or just uninitialised.
Fixes: dfbbfbf191878 ("io_uring: introduce concept of memory regions")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/0abac19dbf81c061cffaa9534a2471ed5460ad3e.1731803848.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/memmap.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/io_uring/memmap.c b/io_uring/memmap.c index bbd9569a0120..6e6ee79ba94f 100644 --- a/io_uring/memmap.c +++ b/io_uring/memmap.c @@ -247,8 +247,10 @@ int io_create_region(struct io_ring_ctx *ctx, struct io_mapped_region *mr, } vptr = vmap(pages, nr_pages, VM_MAP, PAGE_KERNEL); - if (!vptr) + if (!vptr) { + ret = -ENOMEM; goto out_free; + } mr->pages = pages; mr->vmap_ptr = vptr; |