This uses `kern_return_t` for the return type of
`IOSurface{Lock,Unlock}`. In the current code base, `IOReturn` is used
for the return type of `IOSurface{Lock, Unlock}` but the return type is
not available for tvOS. According to the function signature,
`IOSurface{Lock, Unlock}` returns `kern_return_t`. So, this change uses
`kern_return_t` and compares the return value with KERN_SUCCESS.
Bug: 391914246
Change-Id: I296c3a8ab77adc9283d3b02911eff5713916b269
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6429008
Reviewed-by: John Rummell <jrummell@chromium.org>
Reviewed-by: Matthew Denton <mpdenton@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Reviewed-by: Dave Tapuska <dtapuska@chromium.org>
Commit-Queue: Julie Jeongeun Kim <jkim@igalia.com>
Reviewed-by: Kyle Charbonneau <kylechar@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1443779}
c16fc9a490