Since the commit 1e23db450cff ("io_uring: use iter_ubuf for single range
imports") .read_iter() can be called with iov type ITER_UBUF.
In such case dup_iter() will correctly dup but it will not allocate
any memory. But callers ffs_epfile_read_iter and ep_read_iter treat
this as a failure.
Following patches address this by checking if iter_is_ubuf().
Without the fix, async IOs from io_uring will be returned with -ENOMEM.
Sandeep Dhavale (2):
usb: gadget: f_fs: Fix ffs_epfile_read_iter to handle ITER_UBUF
usb: gadgetfs: Fix ep_read_iter to handle ITER_UBUF
drivers/usb/gadget/function/f_fs.c | 2 +-
drivers/usb/gadget/legacy/inode.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
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2.40.0.348.gf938b09366-goog
