darwin-user: Remove unneeded null pointer check

cppcheck reports this error:

commpage.c:223: error: Possible null pointer dereference:
value - otherwise it is redundant to check if value is null at line 214

The null pointer check in line 214 is indeed not needed.
If value were null, the code would crash in line 223.
See do_compare_and_swap64 were for a reference.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

diff --git a/darwin-user/commpage.c b/darwin-user/commpage.c
index f6aa71e058d4b78b04a2ff046d609382482b0f10..cc29bddd95d25217e9fb4f2f6d5e64aa3f1ef073 100644 (file)
--- a/darwin-user/commpage.c
+++ b/darwin-user/commpage.c
@@ -211,7 +211,7 @@ void do_compare_and_swap32(void *cpu_env, int num)
     uint32_t *value = (uint32_t*)((CPUX86State*)cpu_env)->regs[R_ECX];
     DPRINTF("commpage: compare_and_swap32(%x,new,%p)\n", old, value);
 
-    if(value && old == tswap32(*value))
+    if(old == tswap32(*value))
     {
         uint32_t new = ((CPUX86State*)cpu_env)->regs[R_EDX];
         *value = tswap32(new);