Doug Lyons : msvcrt: Do not acquire fd lock in msvcrt_create_io_inherit_block.
Alexandre Julliard
julliard at winehq.org
Tue Apr 12 13:38:03 CDT 2022
Module: wine
Branch: oldstable
Commit: 5be7fa7879b189613fae30a02c797baf76e1a86c
URL: https://source.winehq.org/git/wine.git/?a=commit;h=5be7fa7879b189613fae30a02c797baf76e1a86c
Author: Doug Lyons <douglyons at douglyons.com>
Date: Thu Nov 11 17:32:45 2021 -0500
msvcrt: Do not acquire fd lock in msvcrt_create_io_inherit_block.
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=51647
Signed-off-by: Doug Lyons <douglyons at douglyons.com>
Signed-off-by: Thomas Faber <thomas.faber at reactos.org>
Signed-off-by: Piotr Caban <piotr at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
(cherry picked from commit 5a514d3f45472ce1a169f33d14cdcfb07c51441e)
Signed-off-by: Michael Stefaniuc <mstefani at winehq.org>
---
dlls/msvcrt/file.c | 5 ++---
dlls/msvcrt/msvcrt.h | 2 +-
2 files changed, 3 insertions(+), 4 deletions(-)
diff --git a/dlls/msvcrt/file.c b/dlls/msvcrt/file.c
index 36b1d637a27..55c79553103 100644
--- a/dlls/msvcrt/file.c
+++ b/dlls/msvcrt/file.c
@@ -519,7 +519,7 @@ static int msvcrt_init_fp(FILE* file, int fd, unsigned stream_flags)
* 04 char file flags (wxflag): repeated for each fd
* 4+NBFD HANDLE file handle: repeated for each fd
*/
-unsigned msvcrt_create_io_inherit_block(WORD *size, BYTE **block)
+BOOL msvcrt_create_io_inherit_block(WORD *size, BYTE **block)
{
int fd, last_fd;
char* wxflag_ptr;
@@ -545,7 +545,7 @@ unsigned msvcrt_create_io_inherit_block(WORD *size, BYTE **block)
for (fd = 0; fd < last_fd; fd++)
{
/* to be inherited, we need it to be open, and that DONTINHERIT isn't set */
- fdinfo = get_ioinfo(fd);
+ fdinfo = get_ioinfo_nolock(fd);
if ((fdinfo->wxflag & (WX_OPEN | WX_DONTINHERIT)) == WX_OPEN)
{
*wxflag_ptr = fdinfo->wxflag;
@@ -556,7 +556,6 @@ unsigned msvcrt_create_io_inherit_block(WORD *size, BYTE **block)
*wxflag_ptr = 0;
*handle_ptr = INVALID_HANDLE_VALUE;
}
- release_ioinfo(fdinfo);
wxflag_ptr++; handle_ptr++;
}
return TRUE;
diff --git a/dlls/msvcrt/msvcrt.h b/dlls/msvcrt/msvcrt.h
index c360943b1f0..adb9248baf0 100644
--- a/dlls/msvcrt/msvcrt.h
+++ b/dlls/msvcrt/msvcrt.h
@@ -247,7 +247,7 @@ extern void msvcrt_free_scheduler(void) DECLSPEC_HIDDEN;
extern void msvcrt_free_scheduler_thread(void) DECLSPEC_HIDDEN;
#endif
-extern unsigned msvcrt_create_io_inherit_block(WORD*, BYTE**) DECLSPEC_HIDDEN;
+extern BOOL msvcrt_create_io_inherit_block(WORD*, BYTE**) DECLSPEC_HIDDEN;
/* run-time error codes */
#define _RT_STACK 0
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