crc32-vpmsum: Restore non volatile registers on zero length CRC

This is never hit in practice, because the wrapper code catches it, but fix the zero length exit to restore all the non volatile registers. From: https://github.com/antonblanchard/crc32-vpmsum/commit/aaf0ac48a401abfaa0ad2d520be755e66c1e2e95Signed-off-by: Anton Blanchard <anton@samba.org>

crc32-vpmsum: Restore non volatile registers on zero length CRC
This is never hit in practice, because the wrapper code catches it, but fix the zero length exit to restore all the non volatile registers. From: https://github.com/antonblanchard/crc32-vpmsum/commit/aaf0ac48a401abfaa0ad2d520be755e66c1e2e95Signed-off-by: Anton Blanchard <anton@samba.org>
c82bc561 · Anton Blanchard · Sergey Vojtovich · a2c826b6 · c82bc561
Commit c82bc561 authored Aug 05, 2016 by Anton Blanchard Committed by Sergey Vojtovich Aug 05, 2016
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extra/crc32-vpmsum/crc32.iS extra/crc32-vpmsum/crc32.iS +0 -1

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--- a/extra/crc32-vpmsum/crc32.iS
+++ b/extra/crc32-vpmsum/crc32.iS
@@ -727,7 +727,6 @@ FUNC_START(__F)

 .Lzero:
 		 mr		 r3,r10
-		 blr
 		 b	.Lout

 FUNC_END(__F)