Use calloc instead of malloc/memset-0

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

@@
expression E;
identifier I;
@@
- I = malloc(E);
+ I = calloc(1, E);
...
- memset(I, 0, sizeof *I);

Reviewed-by: Brian Paul <[email protected]>

9 files changed, 18 insertions, 41 deletions

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index f99bcad3081..4b58c35b46b 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -1477,12 +1477,10 @@ _eglBuiltInDriverDRI2(const char *args)
 
    (void) args;
 
-   dri2_drv = malloc(sizeof *dri2_drv);
+   dri2_drv = calloc(1, sizeof *dri2_drv);
    if (!dri2_drv)
       return NULL;
 
-   memset(dri2_drv, 0, sizeof *dri2_drv);
-
    if (!dri2_load(&dri2_drv->base)) {
       free(dri2_drv);
       return NULL;
diff --git a/src/egl/drivers/dri2/platform_drm.c b/src/egl/drivers/dri2/platform_drm.c
index 9aafb525b93..3e04a6cdcb0 100644
--- a/src/egl/drivers/dri2/platform_drm.c
+++ b/src/egl/drivers/dri2/platform_drm.c
@@ -96,13 +96,12 @@ dri2_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
 
    (void) drv;
 
-   dri2_surf = malloc(sizeof *dri2_surf);
+   dri2_surf = calloc(1, sizeof *dri2_surf);
    if (!dri2_surf) {
       _eglError(EGL_BAD_ALLOC, "dri2_create_surface");
       return NULL;
    }
 
-   memset(dri2_surf, 0, sizeof *dri2_surf);
    if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
       goto cleanup_surf;
 
@@ -399,12 +398,10 @@ dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp)
    int fd = -1;
    int i;
 
-   dri2_dpy = malloc(sizeof *dri2_dpy);
+   dri2_dpy = calloc(1, sizeof *dri2_dpy);
    if (!dri2_dpy)
       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
 
-   memset(dri2_dpy, 0, sizeof *dri2_dpy);
-
    disp->DriverData = (void *) dri2_dpy;
 
    gbm = disp->PlatformDisplay;
diff --git a/src/egl/drivers/dri2/platform_wayland.c b/src/egl/drivers/dri2/platform_wayland.c
index d291f0ffa40..d9b45f1cec2 100644
--- a/src/egl/drivers/dri2/platform_wayland.c
+++ b/src/egl/drivers/dri2/platform_wayland.c
@@ -813,12 +813,10 @@ dri2_initialize_wayland(_EGLDriver *drv, _EGLDisplay *disp)
    drv->API.CreateImageKHR = dri2_wayland_create_image_khr;
    drv->API.Terminate = dri2_terminate;
 
-   dri2_dpy = malloc(sizeof *dri2_dpy);
+   dri2_dpy = calloc(1, sizeof *dri2_dpy);
    if (!dri2_dpy)
       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
 
-   memset(dri2_dpy, 0, sizeof *dri2_dpy);
-
    disp->DriverData = (void *) dri2_dpy;
    if (disp->PlatformDisplay == NULL) {
       dri2_dpy->wl_dpy = wl_display_connect(NULL);
diff --git a/src/egl/drivers/dri2/platform_x11.c b/src/egl/drivers/dri2/platform_x11.c
index f7dc89dc992..25337741437 100644
--- a/src/egl/drivers/dri2/platform_x11.c
+++ b/src/egl/drivers/dri2/platform_x11.c
@@ -980,12 +980,10 @@ dri2_initialize_x11_swrast(_EGLDriver *drv, _EGLDisplay *disp)
    drv->API.CreateDRMImageMESA = NULL;
    drv->API.ExportDRMImageMESA = NULL;
 
-   dri2_dpy = malloc(sizeof *dri2_dpy);
+   dri2_dpy = calloc(1, sizeof *dri2_dpy);
    if (!dri2_dpy)
       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
 
-   memset(dri2_dpy, 0, sizeof *dri2_dpy);
-
    disp->DriverData = (void *) dri2_dpy;
    if (disp->PlatformDisplay == NULL) {
       dri2_dpy->conn = xcb_connect(0, 0);
@@ -1056,12 +1054,10 @@ dri2_initialize_x11_dri2(_EGLDriver *drv, _EGLDisplay *disp)
    drv->API.PostSubBufferNV = dri2_post_sub_buffer;
    drv->API.SwapInterval = dri2_swap_interval;
 
-   dri2_dpy = malloc(sizeof *dri2_dpy);
+   dri2_dpy = calloc(1, sizeof *dri2_dpy);
    if (!dri2_dpy)
       return _eglError(EGL_BAD_ALLOC, "eglInitialize");
 
-   memset(dri2_dpy, 0, sizeof *dri2_dpy);
-
    disp->DriverData = (void *) dri2_dpy;
    if (disp->PlatformDisplay == NULL) {
       dri2_dpy->conn = xcb_connect(0, 0);
diff --git a/src/glx/applegl_glx.c b/src/glx/applegl_glx.c
index c3597cee765..a67416ec3f4 100644
--- a/src/glx/applegl_glx.c
+++ b/src/glx/applegl_glx.c
@@ -173,11 +173,10 @@ applegl_create_screen(int screen, struct glx_display * priv)
 {
    struct glx_screen *psc;
 
-   psc = malloc(sizeof *psc);
+   psc = calloc(1, sizeof *psc);
    if (psc == NULL)
       return NULL;
 
-   memset(psc, 0, sizeof *psc);
    glx_screen_init(psc, screen, priv);
    psc->vtable = &applegl_screen_vtable;
 
diff --git a/src/glx/dri2_glx.c b/src/glx/dri2_glx.c
index 5644f665c4c..f2fc1873298 100644
--- a/src/glx/dri2_glx.c
+++ b/src/glx/dri2_glx.c
@@ -198,11 +198,10 @@ dri2_create_context(struct glx_screen *base,
       shared = pcp_shared->driContext;
    }
 
-   pcp = malloc(sizeof *pcp);
+   pcp = calloc(1, sizeof *pcp);
    if (pcp == NULL)
       return NULL;
 
-   memset(pcp, 0, sizeof *pcp);
    if (!glx_context_init(&pcp->base, &psc->base, &config->base)) {
       free(pcp);
       return NULL;
@@ -261,13 +260,12 @@ dri2_create_context_attribs(struct glx_screen *base,
       shared = pcp_shared->driContext;
    }
 
-   pcp = malloc(sizeof *pcp);
+   pcp = calloc(1, sizeof *pcp);
    if (pcp == NULL) {
       *error = __DRI_CTX_ERROR_NO_MEMORY;
       goto error_exit;
    }
 
-   memset(pcp, 0, sizeof *pcp);
    if (!glx_context_init(&pcp->base, &psc->base, &config->base))
       goto error_exit;
 
@@ -352,11 +350,10 @@ dri2CreateDrawable(struct glx_screen *base, XID xDrawable,
    struct dri2_display *pdp;
    GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
 
-   pdraw = malloc(sizeof(*pdraw));
+   pdraw = calloc(1, sizeof(*pdraw));
    if (!pdraw)
       return NULL;
 
-   memset(pdraw, 0, sizeof *pdraw);
    pdraw->base.destroyDrawable = dri2DestroyDrawable;
    pdraw->base.xDrawable = xDrawable;
    pdraw->base.drawable = drawable;
@@ -1018,11 +1015,10 @@ dri2CreateScreen(int screen, struct glx_display * priv)
    drm_magic_t magic;
    int i;
 
-   psc = malloc(sizeof *psc);
+   psc = calloc(1, sizeof *psc);
    if (psc == NULL)
       return NULL;
 
-   memset(psc, 0, sizeof *psc);
    psc->fd = -1;
 
    if (!glx_screen_init(&psc->base, screen, priv)) {
diff --git a/src/glx/dri_glx.c b/src/glx/dri_glx.c
index a158de023ba..3a727e52904 100644
--- a/src/glx/dri_glx.c
+++ b/src/glx/dri_glx.c
@@ -593,11 +593,10 @@ dri_create_context(struct glx_screen *base,
       shared = pcp_shared->driContext;
    }
 
-   pcp = malloc(sizeof *pcp);
+   pcp = calloc(1, sizeof *pcp);
    if (pcp == NULL)
       return NULL;
 
-   memset(pcp, 0, sizeof *pcp);
    if (!glx_context_init(&pcp->base, &psc->base, &config->base)) {
       free(pcp);
       return NULL;
@@ -651,11 +650,10 @@ driCreateDrawable(struct glx_screen *base,
    if (xDrawable != drawable)
       return NULL;
 
-   pdp = malloc(sizeof *pdp);
+   pdp = calloc(1, sizeof *pdp);
    if (!pdp)
       return NULL;
 
-   memset(pdp, 0, sizeof *pdp);
    pdp->base.drawable = drawable;
    pdp->base.psc = &psc->base;
 
diff --git a/src/glx/drisw_glx.c b/src/glx/drisw_glx.c
index b68e62272c7..920a9ab7b99 100644
--- a/src/glx/drisw_glx.c
+++ b/src/glx/drisw_glx.c
@@ -392,11 +392,10 @@ drisw_create_context(struct glx_screen *base,
       shared = pcp_shared->driContext;
    }
 
-   pcp = malloc(sizeof *pcp);
+   pcp = calloc(1, sizeof *pcp);
    if (pcp == NULL)
       return NULL;
 
-   memset(pcp, 0, sizeof *pcp);
    if (!glx_context_init(&pcp->base, &psc->base, &config->base)) {
       free(pcp);
       return NULL;
@@ -457,11 +456,10 @@ drisw_create_context_attribs(struct glx_screen *base,
       shared = pcp_shared->driContext;
    }
 
-   pcp = malloc(sizeof *pcp);
+   pcp = calloc(1, sizeof *pcp);
    if (pcp == NULL)
       return NULL;
 
-   memset(pcp, 0, sizeof *pcp);
    if (!glx_context_init(&pcp->base, &psc->base, &config->base)) {
       free(pcp);
       return NULL;
@@ -522,11 +520,10 @@ driswCreateDrawable(struct glx_screen *base, XID xDrawable,
    Bool ret;
    const __DRIswrastExtension *swrast = psc->swrast;
 
-   pdp = malloc(sizeof(*pdp));
+   pdp = calloc(1, sizeof(*pdp));
    if (!pdp)
       return NULL;
 
-   memset(pdp, 0, sizeof *pdp);
    pdp->base.xDrawable = xDrawable;
    pdp->base.drawable = drawable;
    pdp->base.psc = &psc->base;
diff --git a/src/glx/indirect_glx.c b/src/glx/indirect_glx.c
index 5eef59c1d5a..f3cc1e7d049 100644
--- a/src/glx/indirect_glx.c
+++ b/src/glx/indirect_glx.c
@@ -352,12 +352,11 @@ indirect_create_context(struct glx_screen *psc,
    }
 
    /* Allocate our context record */
-   gc = malloc(sizeof *gc);
+   gc = calloc(1, sizeof *gc);
    if (!gc) {
       /* Out of memory */
       return NULL;
    }
-   memset(gc, 0, sizeof *gc);
 
    glx_context_init(gc, psc, mode);
    gc->isDirect = GL_FALSE;
@@ -464,11 +463,10 @@ indirect_create_screen(int screen, struct glx_display * priv)
 {
    struct glx_screen *psc;
 
-   psc = malloc(sizeof *psc);
+   psc = calloc(1, sizeof *psc);
    if (psc == NULL)
       return NULL;
 
-   memset(psc, 0, sizeof *psc);
    glx_screen_init(psc, screen, priv);
    psc->vtable = &indirect_screen_vtable;