From: balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Sun, 16 Dec 2007 12:39:38 +0000 (+0000)
Subject: Work around a crash when timer signal occurs before main loop, original patch by... 
X-Git-Tag: qemu-xen-4.3.0-rc1~12458
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=4f8eb8daebd72bdc214c63a3b2577f95bbadb27d;p=qemu-upstream-4.5-testing.git

Work around a crash when timer signal occurs before main loop, original patch by 武田 俊也.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3820 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/hw/pxa2xx_keypad.c b/hw/pxa2xx_keypad.c
index b67b2cb84..c6c7528b6 100644
--- a/hw/pxa2xx_keypad.c
+++ b/hw/pxa2xx_keypad.c
@@ -332,8 +332,6 @@ struct pxa2xx_keypad_s *pxa27x_keypad_init(target_phys_addr_t base,
 void pxa27x_register_keypad(struct pxa2xx_keypad_s *kp, struct keymap *map,
         int size)
 {
-    kp->map = (struct keymap *) qemu_mallocz(sizeof(struct keymap) * size);
-
     if(!map || size < 0x80) {
         fprintf(stderr, "%s - No PXA keypad map defined\n", __FUNCTION__);
         exit(-1);
diff --git a/vl.c b/vl.c
index a4592f7bd..2ed325434 100644
--- a/vl.c
+++ b/vl.c
@@ -1186,13 +1186,15 @@ static void host_alarm_handler(int host_signum)
 #endif
         CPUState *env = next_cpu;
 
-        /* stop the currently executing cpu because a timer occured */
-        cpu_interrupt(env, CPU_INTERRUPT_EXIT);
+        if (env) {
+            /* stop the currently executing cpu because a timer occured */
+            cpu_interrupt(env, CPU_INTERRUPT_EXIT);
 #ifdef USE_KQEMU
-        if (env->kqemu_enabled) {
-            kqemu_cpu_interrupt(env);
-        }
+            if (env->kqemu_enabled) {
+                kqemu_cpu_interrupt(env);
+            }
 #endif
+        }
         event_pending = 1;
     }
 }