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qemu-ga: Handle errors uniformely in ga_channel_open() 

We detect errors in several places.  One reports with g_error(), which
calls abort(), the others report with g_critical().  Three of them
exit(), three return false.

Always report with g_critical(), and return false.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>

*minor fix-up of commit msg

Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Markus Armbruster 2013-01-11 11:25:02 +01:00 committed by Michael Roth
parent d4f4a3efdf
commit 7868181f98
1 changed files with 7 additions and 4 deletions
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11
qga/channel-posix.c
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@ -141,14 +141,15 @@ static gboolean ga_channel_open(GAChannel *c, const gchar *path, GAChannelMethod
);
if (fd == -1) {
g_critical("error opening channel: %s", strerror(errno));
exit(EXIT_FAILURE);
return false;
}
#ifdef CONFIG_SOLARIS
ret = ioctl(fd, I_SETSIG, S_OUTPUT | S_INPUT | S_HIPRI);
if (ret == -1) {
g_critical("error setting event mask for channel: %s",
strerror(errno));
exit(EXIT_FAILURE);
close(fd);
return false;
}
#endif
ret = ga_channel_client_add(c, fd);
@ -164,7 +165,7 @@ static gboolean ga_channel_open(GAChannel *c, const gchar *path, GAChannelMethod
int fd = qemu_open(path, O_RDWR | O_NOCTTY | O_NONBLOCK);
if (fd == -1) {
g_critical("error opening channel: %s", strerror(errno));
exit(EXIT_FAILURE);
return false;
}
tcgetattr(fd, &tio);
/* set up serial port for non-canonical, dumb byte streaming */
@ -184,7 +185,9 @@ static gboolean ga_channel_open(GAChannel *c, const gchar *path, GAChannelMethod
tcsetattr(fd, TCSANOW, &tio);
ret = ga_channel_client_add(c, fd);
if (ret) {
g_error("error adding channel to main loop");
g_critical("error adding channel to main loop");
close(fd);
return false;
}
break;
}