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Corinna Vinschen e7bcd47bd5 Cygwin: raw disk I/O: Fix return value in error case
The cast to generate the return value uses a DWORD variable
as test and set value.  The error case is the constant -1.
Given the type of the other half of the conditioal expression,
-1 is cast to DWORD as well.

On 64 bit, this results in the error case returning a 32 bit
-1 value which is equivalent to (ssize_t) 4294967295 rather
than (ssize_t) -1.

Add a fixing cast.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2020-10-14 10:54:17 -04:00
..

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