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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2021-05-04 21:46:00 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2021-05-04 21:46:00 +0300 |
| commit | d0034a7a4ac7fae708146ac0059b9c47a1543f0d (patch) | |
| tree | ac3ac88066f0f80632aa754e3ae008994f2426a2 /lib/logic_pio.c | |
| parent | 56cfe6f820a6315291eb5a1b82bb49633b993d3b (diff) | |
| parent | d12b64b9764ea17554fb230784ebf91287ed807e (diff) | |
| download | linux-d0034a7a4ac7fae708146ac0059b9c47a1543f0d.tar.xz | |
Merge branch 'next' into for-linus
Prepare input updates for 5.13 merge window.
Diffstat (limited to 'lib/logic_pio.c')
| -rw-r--r-- | lib/logic_pio.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/logic_pio.c b/lib/logic_pio.c index f32fe481b492..07b4b9a1f54b 100644 --- a/lib/logic_pio.c +++ b/lib/logic_pio.c @@ -28,6 +28,8 @@ static DEFINE_MUTEX(io_range_mutex); * @new_range: pointer to the IO range to be registered. * * Returns 0 on success, the error code in case of failure. + * If the range already exists, -EEXIST will be returned, which should be + * considered a success. * * Register a new IO range node in the IO range list. */ @@ -51,6 +53,7 @@ int logic_pio_register_range(struct logic_pio_hwaddr *new_range) list_for_each_entry(range, &io_range_list, list) { if (range->fwnode == new_range->fwnode) { /* range already there */ + ret = -EEXIST; goto end_register; } if (range->flags == LOGIC_PIO_CPU_MMIO && |