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drm: make drm_get_format_name thread-safe

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Signed-off-by: Eric Engestrom <eric@engestrom.ch>
[danvet: Clarify that the returned pointer must be freed with
kfree().]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Eric Engestrom
2016-08-15 01:02:38 +01:00
committed by Daniel Vetter
parent fc93ff608b
commit 90844f0004
12 changed files with 89 additions and 48 deletions
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21
drivers/gpu/drm/drm_crtc.c
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@@ -2592,8 +2592,9 @@ static int __setplane_internal(struct drm_plane *plane,
/* Check whether this plane supports the fb pixel format. */
ret = drm_plane_check_pixel_format(plane, fb->pixel_format);
if (ret) {
DRM_DEBUG_KMS("Invalid pixel format %s\n",
drm_get_format_name(fb->pixel_format));
const char *format_name = drm_get_format_name(fb->pixel_format);
DRM_DEBUG_KMS("Invalid pixel format %s\n", format_name);
kfree(format_name);
goto out;
}
@@ -2902,8 +2903,9 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
ret = drm_plane_check_pixel_format(crtc->primary,
fb->pixel_format);
if (ret) {
DRM_DEBUG_KMS("Invalid pixel format %s\n",
drm_get_format_name(fb->pixel_format));
const char *format_name = drm_get_format_name(fb->pixel_format);
DRM_DEBUG_KMS("Invalid pixel format %s\n", format_name);
kfree(format_name);
goto out;
}
}
@@ -3279,6 +3281,7 @@ int drm_mode_addfb(struct drm_device *dev,
static int format_check(const struct drm_mode_fb_cmd2 *r)
{
uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
const char *format_name;
switch (format) {
case DRM_FORMAT_C8:
@@ -3343,8 +3346,9 @@ static int format_check(const struct drm_mode_fb_cmd2 *r)
case DRM_FORMAT_YVU444:
return 0;
default:
DRM_DEBUG_KMS("invalid pixel format %s\n",
drm_get_format_name(r->pixel_format));
format_name = drm_get_format_name(r->pixel_format);
DRM_DEBUG_KMS("invalid pixel format %s\n", format_name);
kfree(format_name);
return -EINVAL;
}
}
@@ -3355,8 +3359,9 @@ static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
ret = format_check(r);
if (ret) {
DRM_DEBUG_KMS("bad framebuffer format %s\n",
drm_get_format_name(r->pixel_format));
const char *format_name = drm_get_format_name(r->pixel_format);
DRM_DEBUG_KMS("bad framebuffer format %s\n", format_name);
kfree(format_name);
return ret;
}