[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH] do not check pointers after dereferencing them
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH] do not check pointers after dereferencing them |
Date: |
Fri, 31 May 2013 14:00:27 +0200 |
Two instances, both spotted by Coverity. In one, two blocks were
swapped. In the other, the check is not needed anymore.
Cc: address@hidden
Cc: address@hidden
Signed-off-by: Paolo Bonzini <address@hidden>
---
monitor.c | 2 +-
savevm.c | 10 +++++-----
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/monitor.c b/monitor.c
index 6ce2a4e..eefc7f0 100644
--- a/monitor.c
+++ b/monitor.c
@@ -280,7 +280,7 @@ void monitor_flush(Monitor *mon)
buf = qstring_get_str(mon->outbuf);
len = qstring_get_length(mon->outbuf);
- if (mon && len && !mon->mux_out) {
+ if (len && !mon->mux_out) {
rc = qemu_chr_fe_write(mon->chr, (const uint8_t *) buf, len);
if (rc == len) {
/* all flushed */
diff --git a/savevm.c b/savevm.c
index 31dcce9..4e0fab6 100644
--- a/savevm.c
+++ b/savevm.c
@@ -322,16 +322,16 @@ QEMUFile *qemu_popen_cmd(const char *command, const char
*mode)
FILE *stdio_file;
QEMUFileStdio *s;
- stdio_file = popen(command, mode);
- if (stdio_file == NULL) {
- return NULL;
- }
-
if (mode == NULL || (mode[0] != 'r' && mode[0] != 'w') || mode[1] != 0) {
fprintf(stderr, "qemu_popen: Argument validity check failed\n");
return NULL;
}
+ stdio_file = popen(command, mode);
+ if (stdio_file == NULL) {
+ return NULL;
+ }
+
s = g_malloc0(sizeof(QEMUFileStdio));
s->stdio_file = stdio_file;
--
1.8.1.4
- [Qemu-devel] [PATCH] do not check pointers after dereferencing them,
Paolo Bonzini <=