3.12-stable review patch. If anyone has any objections, please let me know.
------------------ From: Patrik Jakobsson <patrik.r.jakobs...@gmail.com> commit 631794b44bd3dbfba37074954d5c584c9e8725f0 upstream. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64361 Signed-off-by: Patrik Jakobsson <patrik.r.jakobs...@gmail.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- drivers/gpu/drm/gma500/gma_display.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/gma500/gma_display.c +++ b/drivers/gpu/drm/gma500/gma_display.c @@ -349,6 +349,7 @@ int gma_crtc_cursor_set(struct drm_crtc /* If we didn't get a handle then turn the cursor off */ if (!handle) { temp = CURSOR_MODE_DISABLE; + mutex_lock(&dev->struct_mutex); if (gma_power_begin(dev, false)) { REG_WRITE(control, temp); @@ -365,6 +366,7 @@ int gma_crtc_cursor_set(struct drm_crtc gma_crtc->cursor_obj = NULL; } + mutex_unlock(&dev->struct_mutex); return 0; } @@ -374,9 +376,12 @@ int gma_crtc_cursor_set(struct drm_crtc return -EINVAL; } + mutex_lock(&dev->struct_mutex); obj = drm_gem_object_lookup(dev, file_priv, handle); - if (!obj) - return -ENOENT; + if (!obj) { + ret = -ENOENT; + goto unlock; + } if (obj->size < width * height * 4) { dev_dbg(dev->dev, "Buffer is too small\n"); @@ -440,10 +445,13 @@ int gma_crtc_cursor_set(struct drm_crtc } gma_crtc->cursor_obj = obj; +unlock: + mutex_unlock(&dev->struct_mutex); return ret; unref_cursor: drm_gem_object_unreference(obj); + mutex_unlock(&dev->struct_mutex); return ret; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
