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| author | David S. Miller <davem@davemloft.net> | 2015-06-09 06:06:56 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-06-09 06:06:56 +0300 |
| commit | 941742f49762ba4c908510f036b09a46c1b14513 (patch) | |
| tree | aafb7a72c2072f98889406668003234bed56df02 /drivers/usb/gadget/function/f_midi.c | |
| parent | ac7ba51c215db5739eb640f2f26025ced8668285 (diff) | |
| parent | 5879ae5fd052a63d5ac0684320cb7df3e83da7de (diff) | |
| download | linux-941742f49762ba4c908510f036b09a46c1b14513.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'drivers/usb/gadget/function/f_midi.c')
| -rw-r--r-- | drivers/usb/gadget/function/f_midi.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c index 259b656c0b3e..6316aa5b1c49 100644 --- a/drivers/usb/gadget/function/f_midi.c +++ b/drivers/usb/gadget/function/f_midi.c @@ -973,7 +973,13 @@ static ssize_t f_midi_opts_id_show(struct f_midi_opts *opts, char *page) int result; mutex_lock(&opts->lock); - result = strlcpy(page, opts->id, PAGE_SIZE); + if (opts->id) { + result = strlcpy(page, opts->id, PAGE_SIZE); + } else { + page[0] = 0; + result = 0; + } + mutex_unlock(&opts->lock); return result; |