kmc-solid: Refactor is_interrupted to avoid integer overflow

kawadakk · kawadakk · commit eb627ea3392c · 2023-09-01T11:55:48.000+09:00
diff --git a/library/std/src/sys/solid/net.rs b/library/std/src/sys/solid/net.rs
@@ -183,8 +183,7 @@ pub(super) fn error_name(er: abi::ER) -> Option<&'static str> {
 
 #[inline]
 pub fn is_interrupted(er: abi::ER) -> bool {
-    let errno = netc::SOLID_NET_ERR_BASE - er;
-    errno as libc::c_int == libc::EINTR
+    er == netc::SOLID_NET_ERR_BASE - libc::EINTR
 }
 
 pub(super) fn decode_error_kind(er: abi::ER) -> ErrorKind {

Original file line number	Diff line number	Diff line change
`@@ -183,8 +183,7 @@ pub(super) fn error_name(er: abi::ER) -> Option<&'static str> {`
`183`	`183`
`184`	`184`	`#[inline]`
`185`	`185`	`pub fn is_interrupted(er: abi::ER) -> bool {`
`186`		`- let errno = netc::SOLID_NET_ERR_BASE - er;`
`187`		`- errno as libc::c_int == libc::EINTR`
	`186`	`+ er == netc::SOLID_NET_ERR_BASE - libc::EINTR`
`188`	`187`	`}`
`189`	`188`
`190`	`189`	`pub(super) fn decode_error_kind(er: abi::ER) -> ErrorKind {`