Fix signed/unsigned comparison under MINGW64

SOCKET is unsigned on Windows, these is no need to cast
parameter. INVALID_SOCKET test should work on all platforms.

Reviewed-by: Tomas Mraz <tomas@openssl.foundation>
Reviewed-by: Eugene Syromiatnikov <esyr@openssl.org>
Reviewed-by: Norbert Pocs <norbertp@openssl.org>
MergeDate: Thu Apr 30 11:42:20 2026
(Merged from https://github.com/openssl/openssl/pull/30941)

diff --git a/crypto/bio/bio_sock.c b/crypto/bio/bio_sock.c
index 5b793b9af1d1a82b8a9ec2a78d823f41c09a18ee..44e8f622aefa6fb2377d7381b7b3d8179d20bb57 100644 (file)
--- a/crypto/bio/bio_sock.c
+++ b/crypto/bio/bio_sock.c
@@ -437,7 +437,7 @@ int BIO_socket_wait(int fd, int for_read, time_t max_time)
     time_t now;
 
 #ifdef _WIN32
-    if ((SOCKET)fd == INVALID_SOCKET)
+    if (fd == INVALID_SOCKET)
 #else
     if (fd < 0 || fd >= FD_SETSIZE)
 #endif