From 31f07ec3818f4ece09327401019d137140a3bae4 Mon Sep 17 00:00:00 2001
From: divverent <divverent@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Wed, 4 Mar 2015 17:30:20 +0000
Subject: [PATCH] Fix clang-analyzer false positives.

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@12187 d7cf8633-e32d-0410-b094-e92efae38249
---
 cl_screen.c    | 6 ++++--
 model_shared.c | 3 ++-
 prvm_edict.c   | 6 ++++--
 3 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/cl_screen.c b/cl_screen.c
index 7e15123c..66c17e17 100644
--- a/cl_screen.c
+++ b/cl_screen.c
@@ -1957,10 +1957,12 @@ void SHOWLMP_decodeshow(void)
 		showlmp_t *oldshowlmps = cl.showlmps;
 		cl.max_showlmps += 16;
 		cl.showlmps = (showlmp_t *) Mem_Alloc(cls.levelmempool, cl.max_showlmps * sizeof(showlmp_t));
-		if (cl.num_showlmps)
-			memcpy(cl.showlmps, oldshowlmps, cl.num_showlmps * sizeof(showlmp_t));
 		if (oldshowlmps)
+		{
+			if (cl.num_showlmps)
+				memcpy(cl.showlmps, oldshowlmps, cl.num_showlmps * sizeof(showlmp_t));
 			Mem_Free(oldshowlmps);
+		}
 	}
 	for (k = 0;k < cl.max_showlmps;k++)
 		if (cl.showlmps[k].isactive && !strcmp(cl.showlmps[k].label, lmplabel))
diff --git a/model_shared.c b/model_shared.c
index ec6a94ab..c1bd882f 100644
--- a/model_shared.c
+++ b/model_shared.c
@@ -1578,7 +1578,7 @@ static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
 	unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
 	q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
 	q3shader_hash_entry_t* lastEntry = NULL;
-	while (entry != NULL)
+	do
 	{
 		if (strcasecmp (entry->shader.name, shader->name) == 0)
 		{
@@ -1611,6 +1611,7 @@ static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
 		lastEntry = entry;
 		entry = entry->chain;
 	}
+	while (entry != NULL);
 	if (entry == NULL)
 	{
 		if (lastEntry->shader.name[0] != 0)
diff --git a/prvm_edict.c b/prvm_edict.c
index 31557d21..bc6c5ad5 100644
--- a/prvm_edict.c
+++ b/prvm_edict.c
@@ -3087,10 +3087,12 @@ int PRVM_SetTempString(prvm_prog_t *prog, const char *s)
 		{
 			Con_DPrintf("PRVM_SetTempString: enlarging tempstrings buffer (%iKB -> %iKB)\n", old.maxsize/1024, prog->tempstringsbuf.maxsize/1024);
 			prog->tempstringsbuf.data = (unsigned char *) Mem_Alloc(prog->progs_mempool, prog->tempstringsbuf.maxsize);
-			if (old.cursize)
-				memcpy(prog->tempstringsbuf.data, old.data, old.cursize);
 			if (old.data)
+			{
+				if (old.cursize)
+					memcpy(prog->tempstringsbuf.data, old.data, old.cursize);
 				Mem_Free(old.data);
+			}
 		}
 	}
 	t = (char *)prog->tempstringsbuf.data + prog->tempstringsbuf.cursize;
-- 
2.39.2