diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2022-05-09 12:08:28 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-05-30 18:03:38 +0200 |
| commit | a9face899413f468460219c79503c091c4d362cb (patch) | |
| tree | 4f31569d885b13ba13fc667990a077e93f73801f | |
| parent | b941820ec938d175fd6e4e7ba5b4a6ca9d092afd (diff) | |
| download | linux-a9face899413f468460219c79503c091c4d362cb.tar.gz | |
usb: typec: ucsi: acpi: fix a NULL vs IS_ERR() check in probe
The devm_memremap() function never returns NULL. It returns error
pointers.
Fixes: cdc3d2abf438 ("usb: typec: ucsi: acpi: Map the mailbox with memremap()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| -rw-r--r-- | drivers/usb/typec/ucsi/ucsi_acpi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c index 7455e3aff2be09..8873c1644a2953 100644 --- a/drivers/usb/typec/ucsi/ucsi_acpi.c +++ b/drivers/usb/typec/ucsi/ucsi_acpi.c @@ -133,8 +133,8 @@ static int ucsi_acpi_probe(struct platform_device *pdev) } ua->base = devm_memremap(&pdev->dev, res->start, resource_size(res), MEMREMAP_WB); - if (!ua->base) - return -ENOMEM; + if (IS_ERR(ua->base)) + return PTR_ERR(ua->base); ret = guid_parse(UCSI_DSM_UUID, &ua->guid); if (ret) |