| Message ID | 0abac19dbf81c061cffaa9534a2471ed5460ad3e.1731803848.git.asml.silence@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [1/1] io_uring/region: fix error codes after failed vmap | expand |
On Sun, 17 Nov 2024 00:38:33 +0000, Pavel Begunkov wrote: > io_create_region() jumps after a vmap failure without setting the return > code, it could be 0 or just uninitialised. > > Applied, thanks! [1/1] io_uring/region: fix error codes after failed vmap commit: a652958888fb1ada3e4f6b548576c2d2c1b60d66 Best regards,
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;
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> --- io_uring/memmap.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)