Correct the return types of readv and writev.
readv and writev should return ssize_t, not int.
Bug: none
Test: `m checkbuild` on bullhead
Change-Id: I934c2e8cb7bf76384b63cedfeab88e2f6b65971a
diff --git a/libc/SYSCALLS.TXT b/libc/SYSCALLS.TXT
index 42c8f01..fd302f9 100644
--- a/libc/SYSCALLS.TXT
+++ b/libc/SYSCALLS.TXT
@@ -117,8 +117,8 @@
int munlockall() all
int mincore(void* start, size_t length, unsigned char* vec) all
int __ioctl:ioctl(int, int, void*) all
-int readv(int, const struct iovec*, int) all
-int writev(int, const struct iovec*, int) all
+ssize_t readv(int, const struct iovec*, int) all
+ssize_t writev(int, const struct iovec*, int) all
int __fcntl64:fcntl64(int, int, void*) arm,mips,x86
int fcntl(int, int, void*) arm64,mips64,x86_64
int flock(int, int) all