Char: moxa, add firmware loading fix

Be more verbose on fw load fail as noted by Oyvind.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Oyvind Aabling <Oyvind.Aabling@uni-c.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 6757b1922f4f..1ab9517c24c5 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -846,7 +846,10 @@ static int moxa_init_board(struct moxa_board_conf *brd, struct device *dev)
 
         ret = request_firmware(&fw, file, dev);
         if (ret) {
-                printk(KERN_ERR "request_firmware failed\n");
+                printk(KERN_ERR "MOXA: request_firmware failed. Make sure "
+                                "you've placed '%s' file into your firmware "
+                                "loader directory (e.g. /lib/firmware)\n",
+                                file);
                 goto err_free;
         }