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| author | Al Viro <viro@zeniv.linux.org.uk> | 2022-09-15 19:09:39 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-09 11:28:03 +0100 |
| commit | ff85ec97d14c3532b1bd134adb5d0047e5653dd1 (patch) | |
| tree | 41489943ca4e812f3276b2f802d4c58703507785 | |
| parent | 02f719be2f2b10b5a952a36dc230ea40fa37afb9 (diff) | |
| download | linux-stable-ff85ec97d14c3532b1bd134adb5d0047e5653dd1.tar.gz linux-stable-ff85ec97d14c3532b1bd134adb5d0047e5653dd1.tar.bz2 linux-stable-ff85ec97d14c3532b1bd134adb5d0047e5653dd1.zip | |
fix 'direction' argument of iov_iter_{init,bvec}()
[ Upstream commit e3bf3df824675ea9cadc3cd2c75d08ee83a6ae26 ]
READ means "data destination", WRITE - "data source".
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Stable-dep-of: 6dd88fd59da8 ("vhost-scsi: unbreak any layout for response")
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/vhost/vhost.c | 6 | ||||
| -rw-r--r-- | drivers/vhost/vringh.c | 4 |
2 files changed, 5 insertions, 5 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 547f89a6940f..c234869d6727 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -833,7 +833,7 @@ static int vhost_copy_to_user(struct vhost_virtqueue *vq, void __user *to, VHOST_ACCESS_WO); if (ret < 0) goto out; - iov_iter_init(&t, WRITE, vq->iotlb_iov, ret, size); + iov_iter_init(&t, READ, vq->iotlb_iov, ret, size); ret = copy_to_iter(from, size, &t); if (ret == size) ret = 0; @@ -872,7 +872,7 @@ static int vhost_copy_from_user(struct vhost_virtqueue *vq, void *to, (unsigned long long) size); goto out; } - iov_iter_init(&f, READ, vq->iotlb_iov, ret, size); + iov_iter_init(&f, WRITE, vq->iotlb_iov, ret, size); ret = copy_from_iter(to, size, &f); if (ret == size) ret = 0; @@ -2136,7 +2136,7 @@ static int get_indirect(struct vhost_virtqueue *vq, vq_err(vq, "Translation failure %d in indirect.\n", ret); return ret; } - iov_iter_init(&from, READ, vq->indirect, ret, len); + iov_iter_init(&from, WRITE, vq->indirect, ret, len); count = len / sizeof desc; /* Buffers are chained via a 16 bit next field, so * we can have at most 2^16 of these. */ diff --git a/drivers/vhost/vringh.c b/drivers/vhost/vringh.c index 828c29306565..139c782848c6 100644 --- a/drivers/vhost/vringh.c +++ b/drivers/vhost/vringh.c @@ -1161,7 +1161,7 @@ static inline int copy_from_iotlb(const struct vringh *vrh, void *dst, else if (ret < 0) return ret; - iov_iter_bvec(&iter, READ, iov, ret, translated); + iov_iter_bvec(&iter, WRITE, iov, ret, translated); ret = copy_from_iter(dst, translated, &iter); if (ret < 0) @@ -1194,7 +1194,7 @@ static inline int copy_to_iotlb(const struct vringh *vrh, void *dst, else if (ret < 0) return ret; - iov_iter_bvec(&iter, WRITE, iov, ret, translated); + iov_iter_bvec(&iter, READ, iov, ret, translated); ret = copy_to_iter(src, translated, &iter); if (ret < 0) |