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 sjg@chromium.org ---
include/log.h | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/include/log.h b/include/log.h index a3edd25546..a01b728ec0 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
/**