From: Juha-Pekka Heikkila Date: Mon, 14 Aug 2023 16:34:45 +0000 (+0300) Subject: drm/i915/display: add lock while printing frontbuffer tracking bits to debugfs X-Git-Tag: v6.7-rc1~145^2~15^2~178 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=40a54a268ffc0fa1d28150054d1fffbe0ea37fd8;p=thirdparty%2Fkernel%2Flinux.git drm/i915/display: add lock while printing frontbuffer tracking bits to debugfs Add missing spin_lock/unlock Signed-off-by: Juha-Pekka Heikkila Reviewed-by: Jouni Högander Signed-off-by: Jouni Högander Link: https://patchwork.freedesktop.org/patch/msgid/20230814163452.2925-1-juhapekka.heikkila@gmail.com --- diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c index 63c1fb9e479fa..f05b52381a831 100644 --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c @@ -43,12 +43,16 @@ static int i915_frontbuffer_tracking(struct seq_file *m, void *unused) { struct drm_i915_private *dev_priv = node_to_i915(m->private); + spin_lock(&dev_priv->display.fb_tracking.lock); + seq_printf(m, "FB tracking busy bits: 0x%08x\n", dev_priv->display.fb_tracking.busy_bits); seq_printf(m, "FB tracking flip bits: 0x%08x\n", dev_priv->display.fb_tracking.flip_bits); + spin_unlock(&dev_priv->display.fb_tracking.lock); + return 0; }