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Blackfin: strncpy: fix handling of zero lengths

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The jump to 4f will cause the NUL padding loop to run at least one time,
so if string length is zero just jump to the end.  Otherwise we wrongly
write one NUL byte when size==0.

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Steven Miao 2011-06-01 15:52:41 +08:00 committed by Mike Frysinger
parent 1fa7b6a29c
commit 5ff6197f82
1 changed files with 1 additions and 1 deletions
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arch/blackfin/lib/strncpy.S
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@ -25,7 +25,7 @@
ENTRY(_strncpy)
CC = R2 == 0;
if CC JUMP 4f;
if CC JUMP 6f;
P2 = R2 ; /* size */
P0 = R0 ; /* dst*/