[PATCH] drm/print: Handle NULL drm device in __drm_printk()

[Luben Tuikov]

drm_{err,warn,...}() use __drm_printk() which takes a drm device pointer and
uses the embedded device pointer to print the device. This facility handles
NULL device pointer, but not NULL drm device pointer. This patch makes
__drm_printk() also handle a NULL drm device pointer. The printed output is
identical to if drm->dev had been NULL.

Signed-off-by: Luben Tuikov <ltuikov89 at gmail.com>
---
 include/drm/drm_print.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h
index a93a387f8a1a15..dd4883df876a6d 100644
--- a/include/drm/drm_print.h
+++ b/include/drm/drm_print.h
@@ -453,7 +453,7 @@ void __drm_dev_dbg(struct _ddebug *desc, const struct device *dev,
 
 /* Helper for struct drm_device based logging. */
 #define __drm_printk(drm, level, type, fmt, ...)			\
-	dev_##level##type((drm)->dev, "[drm] " fmt, ##__VA_ARGS__)
+	dev_##level##type((drm) ? (drm)->dev : NULL, "[drm] " fmt, ##__VA_ARGS__)
 
 
 #define drm_info(drm, fmt, ...)					\

base-commit: 3b434a3445fff3149128db0169da864d67057325
-- 
2.42.1