From b616cef97aa8562a8c08558505675e255b5347cc Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 11 Jun 2018 13:07:14 -0600 Subject: [PATCH] log: Add a way to log a return value with a message It is sometimes useful to show a message when logging an error return value, perhaps to add a few details about the problem. Add a function to support this. Signed-off-by: Simon Glass --- include/log.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/log.h b/include/log.h index 3e99d6e..653fb8d 100644 --- a/include/log.h +++ b/include/log.h @@ -166,8 +166,16 @@ void __assert_fail(const char *assertion, const char *file, unsigned int line, log(LOG_CATEGORY, LOGL_ERR, "returning err=%d\n", __ret); \ __ret; \ }) +#define log_msg_ret(_msg, _ret) ({ \ + int __ret = (_ret); \ + if (__ret < 0) \ + log(LOG_CATEGORY, LOGL_ERR, "%s: returning err=%d\n", _msg, \ + __ret); \ + __ret; \ + }) #else #define log_ret(_ret) (_ret) +#define log_msg_ret(_ret) (_ret) #endif /** -- 2.7.4