[Mesa-dev] [PATCH 3/3] Don't cast the return value of malloc/realloc

Matt Turner mattst88 at gmail.com
Mon Dec 8 11:56:42 PST 2014


See commit 2b7a972e for the Coccinelle script.
---
 src/gallium/state_trackers/glx/xlib/glx_api.c     | 12 +++++-------
 src/gallium/state_trackers/glx/xlib/glx_usefont.c |  2 +-
 src/gallium/state_trackers/glx/xlib/xm_api.c      |  2 +-
 src/gallium/state_trackers/wgl/stw_tls.c          |  2 +-
 src/mesa/drivers/x11/fakeglx.c                    |  3 +--
 src/mesa/drivers/x11/xm_api.c                     |  2 +-
 src/mesa/main/imports.c                           |  4 ++--
 src/mesa/main/objectlabel.c                       |  2 +-
 src/mesa/main/shaderapi.c                         |  5 ++---
 src/mesa/program/prog_instruction.c               |  8 +-------
 src/mesa/program/prog_parameter.c                 |  2 +-
 11 files changed, 17 insertions(+), 27 deletions(-)

diff --git a/src/gallium/state_trackers/glx/xlib/glx_api.c b/src/gallium/state_trackers/glx/xlib/glx_api.c
index 1807edb..ad80dc0 100644
--- a/src/gallium/state_trackers/glx/xlib/glx_api.c
+++ b/src/gallium/state_trackers/glx/xlib/glx_api.c
@@ -253,8 +253,7 @@ save_glx_visual( Display *dpy, XVisualInfo *vinfo,
        */
       xmvis->vishandle = vinfo;
       /* Allocate more space for additional visual */
-      VisualTable = (XMesaVisual *) realloc( VisualTable,
-                                   sizeof(XMesaVisual) * (NumVisuals + 1));
+      VisualTable = realloc(VisualTable, sizeof(XMesaVisual) * (NumVisuals + 1));
       /* add xmvis to the list */
       VisualTable[NumVisuals] = xmvis;
       NumVisuals++;
@@ -1078,7 +1077,7 @@ glXChooseVisual( Display *dpy, int screen, int *list )
    xmvis = choose_visual(dpy, screen, list, GL_FALSE);
    if (xmvis) {
       /* create a new vishandle - the cached one may be stale */
-      xmvis->vishandle = (XVisualInfo *) malloc(sizeof(XVisualInfo));
+      xmvis->vishandle = malloc(sizeof(XVisualInfo));
       if (xmvis->vishandle) {
          memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo));
       }
@@ -1829,8 +1828,7 @@ glXGetFBConfigs( Display *dpy, int screen, int *nelements )
    visTemplate.screen = screen;
    visuals = XGetVisualInfo(dpy, visMask, &visTemplate, nelements);
    if (*nelements > 0) {
-      XMesaVisual *results;
-      results = (XMesaVisual *) malloc(*nelements * sizeof(XMesaVisual));
+      XMesaVisual *results = malloc(*nelements * sizeof(XMesaVisual));
       if (!results) {
          *nelements = 0;
          return NULL;
@@ -1864,7 +1862,7 @@ glXChooseFBConfig(Display *dpy, int screen,
 
    xmvis = choose_visual(dpy, screen, attribList, GL_TRUE);
    if (xmvis) {
-      GLXFBConfig *config = (GLXFBConfig *) malloc(sizeof(XMesaVisual));
+      GLXFBConfig *config = malloc(sizeof(XMesaVisual));
       if (!config) {
          *nitems = 0;
          return NULL;
@@ -1889,7 +1887,7 @@ glXGetVisualFromFBConfig( Display *dpy, GLXFBConfig config )
       return xmvis->vishandle;
 #else
       /* create a new vishandle - the cached one may be stale */
-      xmvis->vishandle = (XVisualInfo *) malloc(sizeof(XVisualInfo));
+      xmvis->vishandle = malloc(sizeof(XVisualInfo));
       if (xmvis->vishandle) {
          memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo));
       }
diff --git a/src/gallium/state_trackers/glx/xlib/glx_usefont.c b/src/gallium/state_trackers/glx/xlib/glx_usefont.c
index de123f2..f7ee68b 100644
--- a/src/gallium/state_trackers/glx/xlib/glx_usefont.c
+++ b/src/gallium/state_trackers/glx/xlib/glx_usefont.c
@@ -241,7 +241,7 @@ glXUseXFont(Font font, int first, int count, int listbase)
    max_bm_width = (max_width + 7) / 8;
    max_bm_height = max_height;
 
-   bm = (GLubyte *) malloc((max_bm_width * max_bm_height) * sizeof(GLubyte));
+   bm = malloc((max_bm_width * max_bm_height) * sizeof(GLubyte));
    if (!bm) {
       XFreeFontInfo(NULL, fs, 1);
       _mesa_error(NULL, GL_OUT_OF_MEMORY,
diff --git a/src/gallium/state_trackers/glx/xlib/xm_api.c b/src/gallium/state_trackers/glx/xlib/xm_api.c
index 2aa5ac4..34be1f7 100644
--- a/src/gallium/state_trackers/glx/xlib/xm_api.c
+++ b/src/gallium/state_trackers/glx/xlib/xm_api.c
@@ -705,7 +705,7 @@ XMesaVisual XMesaCreateVisual( Display *display,
     * the struct but we may need some of the information contained in it
     * at a later time.
     */
-   v->visinfo = (XVisualInfo *) malloc(sizeof(*visinfo));
+   v->visinfo = malloc(sizeof(*visinfo));
    if (!v->visinfo) {
       free(v);
       return NULL;
diff --git a/src/gallium/state_trackers/wgl/stw_tls.c b/src/gallium/state_trackers/wgl/stw_tls.c
index 4b51845..ca27a53 100644
--- a/src/gallium/state_trackers/wgl/stw_tls.c
+++ b/src/gallium/state_trackers/wgl/stw_tls.c
@@ -120,7 +120,7 @@ stw_tls_data_create(DWORD dwThreadId)
       debug_printf("%s(0x%04lx)\n", __FUNCTION__, dwThreadId);
    }
 
-   data = (struct stw_tls_data *)calloc(1, sizeof *data);
+   data = calloc(1, sizeof *data);
    if (!data) {
       goto no_data;
    }
diff --git a/src/mesa/drivers/x11/fakeglx.c b/src/mesa/drivers/x11/fakeglx.c
index ee05f8a..33c024a 100644
--- a/src/mesa/drivers/x11/fakeglx.c
+++ b/src/mesa/drivers/x11/fakeglx.c
@@ -326,8 +326,7 @@ save_glx_visual( Display *dpy, XVisualInfo *vinfo,
        */
       xmvis->vishandle = vinfo;
       /* Allocate more space for additional visual */
-      VisualTable = (XMesaVisual *) realloc( VisualTable,
-                                   sizeof(XMesaVisual) * (NumVisuals + 1));
+      VisualTable = realloc(VisualTable, sizeof(XMesaVisual) * (NumVisuals + 1));
       /* add xmvis to the list */
       VisualTable[NumVisuals] = xmvis;
       NumVisuals++;
diff --git a/src/mesa/drivers/x11/xm_api.c b/src/mesa/drivers/x11/xm_api.c
index 2d66dbd..b49133b 100644
--- a/src/mesa/drivers/x11/xm_api.c
+++ b/src/mesa/drivers/x11/xm_api.c
@@ -783,7 +783,7 @@ XMesaVisual XMesaCreateVisual( XMesaDisplay *display,
     * the struct but we may need some of the information contained in it
     * at a later time.
     */
-   v->visinfo = (XVisualInfo *) malloc(sizeof(*visinfo));
+   v->visinfo = malloc(sizeof(*visinfo));
    if(!v->visinfo) {
       free(v);
       return NULL;
diff --git a/src/mesa/main/imports.c b/src/mesa/main/imports.c
index 4f5a2d1..6945c2f 100644
--- a/src/mesa/main/imports.c
+++ b/src/mesa/main/imports.c
@@ -94,7 +94,7 @@ _mesa_align_malloc(size_t bytes, unsigned long alignment)
 
    ASSERT( alignment > 0 );
 
-   ptr = (uintptr_t)malloc(bytes + alignment + sizeof(void *));
+   ptr = malloc(bytes + alignment + sizeof(void *));
    if (!ptr)
       return NULL;
 
@@ -143,7 +143,7 @@ _mesa_align_calloc(size_t bytes, unsigned long alignment)
 
    ASSERT( alignment > 0 );
 
-   ptr = (uintptr_t)calloc(1, bytes + alignment + sizeof(void *));
+   ptr = calloc(1, bytes + alignment + sizeof(void *));
    if (!ptr)
       return NULL;
 
diff --git a/src/mesa/main/objectlabel.c b/src/mesa/main/objectlabel.c
index efa7ba8..78df96b 100644
--- a/src/mesa/main/objectlabel.c
+++ b/src/mesa/main/objectlabel.c
@@ -58,7 +58,7 @@ set_label(struct gl_context *ctx, char **labelPtr, const char *label,
                         MAX_LABEL_LENGTH);
 
          /* explicit length */
-         *labelPtr = (char *) malloc(length+1);
+         *labelPtr = malloc(length+1);
          if (*labelPtr) {
             memcpy(*labelPtr, label, length);
             /* length is not required to include the null terminator so
diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index 6657820..6d831f7 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -274,9 +274,8 @@ attach_shader(struct gl_context *ctx, GLuint program, GLuint shader)
    }
 
    /* grow list */
-   shProg->Shaders = (struct gl_shader **)
-      realloc(shProg->Shaders,
-              (n + 1) * sizeof(struct gl_shader *));
+   shProg->Shaders = realloc(shProg->Shaders,
+                             (n + 1) * sizeof(struct gl_shader *));
    if (!shProg->Shaders) {
       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glAttachShader");
       return;
diff --git a/src/mesa/program/prog_instruction.c b/src/mesa/program/prog_instruction.c
index 976024e..c1b9527 100644
--- a/src/mesa/program/prog_instruction.c
+++ b/src/mesa/program/prog_instruction.c
@@ -87,13 +87,7 @@ struct prog_instruction *
 _mesa_realloc_instructions(struct prog_instruction *oldInst,
                            GLuint numOldInst, GLuint numNewInst)
 {
-   struct prog_instruction *newInst;
-
-   newInst = (struct prog_instruction *)
-      realloc(oldInst,
-              numNewInst * sizeof(struct prog_instruction));
-
-   return newInst;
+   return realloc(oldInst, numNewInst * sizeof(struct prog_instruction));
 }
 
 
diff --git a/src/mesa/program/prog_parameter.c b/src/mesa/program/prog_parameter.c
index 896c605..0ef4641 100644
--- a/src/mesa/program/prog_parameter.c
+++ b/src/mesa/program/prog_parameter.c
@@ -120,7 +120,7 @@ _mesa_add_parameter(struct gl_program_parameter_list *paramList,
       paramList->Size = paramList->Size + 4 * sz4;
 
       /* realloc arrays */
-      paramList->Parameters = (struct gl_program_parameter *)
+      paramList->Parameters =
          realloc(paramList->Parameters,
                  paramList->Size * sizeof(struct gl_program_parameter));
 
-- 
2.0.4



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