Remove more superfluous if(p!=NULL) checks around free(p).

This patch has been generated by the following Coccinelle semantic patch:

@@
expression E;
@@
- if (E != NULL)
-   free(E);
+ free(E);

Signed-off-by: Cyril Brulebois <kibi@debian.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

8 files changed, 12 insertions, 24 deletions

diff --git a/dix/grabs.c b/dix/grabs.c
index f850e3d84..69c58dff9 100644
--- a/dix/grabs.c
+++ b/dix/grabs.c
@@ -117,11 +117,8 @@ CreateGrab(
 static void
 FreeGrab(GrabPtr pGrab)
 {
-    if (pGrab->modifiersDetail.pMask != NULL)
-	free(pGrab->modifiersDetail.pMask);
-
-    if (pGrab->detail.pMask != NULL)
-	free(pGrab->detail.pMask);
+    free(pGrab->modifiersDetail.pMask);
+    free(pGrab->detail.pMask);
 
     if (pGrab->cursor)
 	FreeCursor(pGrab->cursor, (Cursor)0);
diff --git a/glx/single2.c b/glx/single2.c
index 56ad86dc6..f93ce6e4a 100644
--- a/glx/single2.c
+++ b/glx/single2.c
@@ -377,8 +377,7 @@ int DoGetString(__GLXclientState *cl, GLbyte *pc, GLboolean need_swap)
 
     __GLX_SEND_HEADER();
     WriteToClient(client, length, (char *) string); 
-    if (buf != NULL)
-	free(buf);
+    free(buf);
 
     return Success;
 }
diff --git a/hw/xfree86/modes/xf86Crtc.c b/hw/xfree86/modes/xf86Crtc.c
index b2daec72e..7fc2a60f7 100644
--- a/hw/xfree86/modes/xf86Crtc.c
+++ b/hw/xfree86/modes/xf86Crtc.c
@@ -2964,8 +2964,7 @@ xf86OutputSetEDID (xf86OutputPtr output, xf86MonPtr edid_mon)
     int			size;
 #endif
     
-    if (output->MonInfo != NULL)
-	free(output->MonInfo);
+    free(output->MonInfo);
     
     output->MonInfo = edid_mon;
 
diff --git a/mi/mispans.c b/mi/mispans.c
index 9f56e3c3d..53539e515 100644
--- a/mi/mispans.c
+++ b/mi/mispans.c
@@ -215,7 +215,7 @@ void miAppendSpans(SpanGroup *spanGroup, SpanGroup *otherGroup, Spans *spans)
 
 void miFreeSpanGroup(SpanGroup *spanGroup)
 {
-    if (spanGroup->group != NULL) free(spanGroup->group);
+    free(spanGroup->group);
 }
 
 static void QuickSortSpansX(
diff --git a/miext/rootless/rootlessScreen.c b/miext/rootless/rootlessScreen.c
index 43b9cbb53..61d2f5dab 100644
--- a/miext/rootless/rootlessScreen.c
+++ b/miext/rootless/rootlessScreen.c
@@ -92,8 +92,7 @@ RootlessUpdateScreenPixmap(ScreenPtr pScreen)
     rowbytes = PixmapBytePad(pScreen->width, pScreen->rootDepth);
 
     if (s->pixmap_data_size < rowbytes) {
-        if (s->pixmap_data != NULL)
-            free(s->pixmap_data);
+        free(s->pixmap_data);
 
         s->pixmap_data_size = rowbytes;
         s->pixmap_data = malloc(s->pixmap_data_size);
diff --git a/os/log.c b/os/log.c
index ee4b45fa4..7d1078355 100644
--- a/os/log.c
+++ b/os/log.c
@@ -489,8 +489,7 @@ AuditFlush(OsTimerPtr timer, CARD32 now, pointer arg)
 	ErrorF("%slast message repeated %d times\n",
 	       prefix != NULL ? prefix : "", nrepeat);
 	nrepeat = 0;
-	if (prefix != NULL)
-	    free(prefix);
+	free(prefix);
 	return AUDIT_TIMEOUT;
     } else {
 	/* if the timer expires without anything to print, flush the message */
@@ -523,8 +522,7 @@ VAuditF(const char *f, va_list args)
 	nrepeat = 0;
 	auditTimer = TimerSet(auditTimer, 0, AUDIT_TIMEOUT, AuditFlush, NULL);
     }
-    if (prefix != NULL)
-	free(prefix);
+    free(prefix);
 }
 
 void
diff --git a/xkb/XKBMAlloc.c b/xkb/XKBMAlloc.c
index e85a8af95..2681ba3c3 100644
--- a/xkb/XKBMAlloc.c
+++ b/xkb/XKBMAlloc.c
@@ -292,11 +292,9 @@ KeyCode		matchingKeys[XkbMaxKeyCount],nMatchingKeys;
     }
     type= &xkb->map->types[type_ndx];
     if (map_count==0) {
-	if (type->map!=NULL)
-	    free(type->map);
+	free(type->map);
 	type->map= NULL;
-	if (type->preserve!=NULL)
-	    free(type->preserve);
+	free(type->preserve);
 	type->preserve= NULL;
 	type->map_count= 0;
     }
diff --git a/xkb/ddxLoad.c b/xkb/ddxLoad.c
index 5e6ab8770..cfc6198fd 100644
--- a/xkb/ddxLoad.c
+++ b/xkb/ddxLoad.c
@@ -267,8 +267,7 @@ XkbDDXCompileKeymapByNames(	XkbDescPtr		xkb,
 		strncpy(nameRtrn,keymap,nameRtrnLen);
 		nameRtrn[nameRtrnLen-1]= '\0';
 	    }
-            if (buf != NULL)
-                free(buf);
+            free(buf);
 	    return TRUE;
 	}
 	else
@@ -287,8 +286,7 @@ XkbDDXCompileKeymapByNames(	XkbDescPtr		xkb,
     }
     if (nameRtrn)
 	nameRtrn[0]= '\0';
-    if (buf != NULL)
-        free(buf);
+    free(buf);
     return FALSE;
 }