From 0fcc286f6a952d6ec40f74f26fd9cd5d63c25f9e Mon Sep 17 00:00:00 2001 From: Peter Hurley Date: Sat, 16 Jan 2016 15:23:48 -0800 Subject: of: earlycon: Log more helpful message if stdout-path node not found Earlycon may fail to initialize for a variety of reasons, most of which log the default early param message. If the stdout-path node is not found, log the path which was not found (and suppress the default early param message). Acked-by: Rob Herring Signed-off-by: Peter Hurley Signed-off-by: Greg Kroah-Hartman --- drivers/of/fdt.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers/of/fdt.c') diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 918809e6f913..e2295b2c9836 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -820,11 +820,14 @@ static int __init early_init_dt_scan_chosen_serial(void) q = strchrnul(p, ':'); if (*q != '\0') options = q + 1; + l = q - p; /* Get the node specified by stdout-path */ - offset = fdt_path_offset_namelen(fdt, p, q - p); - if (offset < 0) - return -ENODEV; + offset = fdt_path_offset_namelen(fdt, p, l); + if (offset < 0) { + pr_warn("earlycon: stdout-path %.*s not found\n", l, p); + return 0; + } for (match = __earlycon_table; match < __earlycon_table_end; match++) { if (!match->compatible[0]) -- cgit v1.2.3