geemili
/
drm
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

drm: Initialize or valgrind-clear modesetting ioctl arguments. 

Fixes valgrind complaints in the modesetting driver.  I tried to
follow each ioctl's pattern for whether it was initializing just the
in values, or both in and out values.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
main
Eric Anholt 2013-12-28 22:06:51 -08:00 committed by Kenneth Graunke
parent cb4bc8ead6
commit 734de7093d
2 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Makefile.am
View File

@ -59,6 +59,8 @@ libdrm_la_LDFLAGS = -version-number 2:4:0 -no-undefined
libdrm_la_LIBADD = @CLOCK_LIB@
libdrm_la_CPPFLAGS = -I$(top_srcdir)/include/drm
AM_CFLAGS = \
$(VALGRIND_CFLAGS)
libdrm_la_SOURCES = \
xf86drm.c \

19
xf86drmMode.c
View File

@ -41,6 +41,10 @@
#include <sys/ioctl.h>
#include <stdio.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "xf86drmMode.h"
#include "xf86drm.h"
#include <drm.h>
@ -49,6 +53,16 @@
#include <unistd.h>
#include <errno.h>
#ifdef HAVE_VALGRIND
#include <valgrind.h>
#include <memcheck.h>
#define VG(x) x
#else
#define VG(x)
#endif
#define VG_CLEAR(s) VG(memset(&s, 0, sizeof(s)))
#define U642VOID(x) ((void *)(unsigned long)(x))
#define VOID2U64(x) ((uint64_t)(unsigned long)(x))
@ -245,6 +259,7 @@ int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth,
struct drm_mode_fb_cmd f;
int ret;
VG_CLEAR(f);
f.width = width;
f.height = height;
f.pitch = pitch;
@ -335,6 +350,7 @@ drmModeCrtcPtr drmModeGetCrtc(int fd, uint32_t crtcId)
struct drm_mode_crtc crtc;
drmModeCrtcPtr r;
VG_CLEAR(crtc);
crtc.crtc_id = crtcId;
if (drmIoctl(fd, DRM_IOCTL_MODE_GETCRTC, &crtc))
@ -368,6 +384,7 @@ int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
{
struct drm_mode_crtc crtc;
VG_CLEAR(crtc);
crtc.x = x;
crtc.y = y;
crtc.crtc_id = crtcId;
@ -436,6 +453,7 @@ drmModeEncoderPtr drmModeGetEncoder(int fd, uint32_t encoder_id)
drmModeEncoderPtr r = NULL;
enc.encoder_id = encoder_id;
enc.crtc_id = 0;
enc.encoder_type = 0;
enc.possible_crtcs = 0;
enc.possible_clones = 0;
@ -580,6 +598,7 @@ drmModePropertyPtr drmModeGetProperty(int fd, uint32_t property_id)
struct drm_mode_get_property prop;
drmModePropertyPtr r;
VG_CLEAR(prop);
prop.prop_id = property_id;
prop.count_enum_blobs = 0;
prop.count_values = 0;