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The problem is that "req->actual" is a u32, "req->status" is an int, and
iocb->ki_complete() takes a long. We would expect that a negative error
code in "req->status" would translate to a negative long value.
But what actually happens is that because "req->actual" is a u32, the
error codes is type promoted to a high positive value and then remains
a positive value when it is cast to long. (No sign expansion).
We can fix this by casting "req->status" to long.
Acked-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YIE7RrBPLWc3XtMg@mwanda
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3343f376d4