From ca355e9d6acab994453cdbb65cb213d09ee4a50f Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 14 Oct 2015 15:10:35 +0200
Subject: [PATCH] linux: Do not call FatalError from xf86CloseConsole
FatalError ends up calling xf86CloseConsole itself, so calling FatalError
from within xf86CloseConsole is not a good idea.
All the other error checking done in xf86CloseConsole uses
xf86Msg(X_WARNING, ...) except for the switch_to() helper function,
change things so that switch_to() also uses xf86Msg rather then FatalError
when called from xf86CloseConsole.
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1269210
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
hw/xfree86/os-support/linux/lnx_init.c | 24 ++++++++++++++++--------
1 file changed, 16 insertions(+), 8 deletions(-)
diff --git a/hw/xfree86/os-support/linux/lnx_init.c b/hw/xfree86/os-support/linux/lnx_init.c
index ec06a05..9fec964 100644
--- a/hw/xfree86/os-support/linux/lnx_init.c
+++ b/hw/xfree86/os-support/linux/lnx_init.c
@@ -64,17 +64,25 @@ drain_console(int fd, void *closure)
}
static void
-switch_to(int vt, const char *from)
+switch_to(int vt, Bool is_open)
{
int ret;
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_ACTIVATE, vt));
- if (ret < 0)
- FatalError("%s: VT_ACTIVATE failed: %s\n", from, strerror(errno));
+ if (ret < 0) {
+ if (is_open)
+ FatalError("xf86OpenConsole: VT_ACTIVATE failed: %s\n", strerror(errno));
+ else
+ xf86Msg(X_WARNING, "xf86CloseConsole: VT_ACTIVATE failed: %s\n", strerror(errno));
+ }
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_WAITACTIVE, vt));
- if (ret < 0)
- FatalError("%s: VT_WAITACTIVE failed: %s\n", from, strerror(errno));
+ if (ret < 0) {
+ if (is_open)
+ FatalError("xf86OpenConsole: VT_WAITACTIVE failed: %s\n", strerror(errno));
+ else
+ xf86Msg(X_WARNING, "xf86CloseConsole: VT_WAITACTIVE failed: %s\n", strerror(errno));
+ }
}
#pragma GCC diagnostic push
@@ -233,7 +241,7 @@ xf86OpenConsole(void)
/*
* now get the VT. This _must_ succeed, or else fail completely.
*/
- switch_to(xf86Info.vtno, "xf86OpenConsole");
+ switch_to(xf86Info.vtno, TRUE);
SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_GETMODE, &VT));
if (ret < 0)
@@ -294,7 +302,7 @@ xf86OpenConsole(void)
else { /* serverGeneration != 1 */
if (!xf86Info.ShareVTs && xf86Info.autoVTSwitch) {
/* now get the VT */
- switch_to(xf86Info.vtno, "xf86OpenConsole");
+ switch_to(xf86Info.vtno, TRUE);
}
}
}
@@ -346,7 +354,7 @@ xf86CloseConsole(void)
* Perform a switch back to the active VT when we were started
*/
if (activeVT >= 0) {
- switch_to(activeVT, "xf86CloseConsole");
+ switch_to(activeVT, FALSE);
activeVT = -1;
}
}
--
2.5.0
