pvr: Fix signed comparison
What does this MR do and why?
pvr: Fix signed comparison
Fix defect reported by Coverity Scan.
Unsigned compared against 0 (NO_EFFECT) unsigned_compare: This less-than-zero comparison of an unsigned value is never true. val < 0U. unsigned_conversion: val is converted to an unsigned type because it's compared to an unsigned constant.
Fixes: 480bdff4 ("pvr: Add support to process transfer and blit cmds") Signed-off-by: Vinson Lee vlee@freedesktop.org