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platform/x86: dell-wmi: clean up wmi descriptor check 

Some cases the wrong type was used for errors and checks can be
done more cleanly.

Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Reviewed-by: Edward O'Callaghan <quasisec@google.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
This commit is contained in:
Mario Limonciello 2017-11-01 14:25:25 -05:00 committed by Darren Hart (VMware)
parent d0bf42d83e
commit 7e6dcbebcb
1 changed files with 5 additions and 5 deletions
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10
drivers/platform/x86/dell-wmi.c
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@ -663,16 +663,16 @@ static int dell_wmi_check_descriptor_buffer(struct wmi_device *wdev)
buffer = (u32 *)obj->buffer.pointer;
if (buffer[0] != 0x4C4C4544 && buffer[1] != 0x494D5720) {
dev_err(&wdev->dev, "Dell descriptor buffer has invalid signature (%*ph)\n",
8, buffer);
if (strncmp(obj->string.pointer, "DELL WMI", 8) != 0) {
dev_err(&wdev->dev, "Dell descriptor buffer has invalid signature (%8ph)\n",
buffer);
ret = -EINVAL;
goto out;
}
if (buffer[2] != 0 && buffer[2] != 1)
dev_warn(&wdev->dev, "Dell descriptor buffer has unknown version (%d)\n",
buffer[2]);
dev_warn(&wdev->dev, "Dell descriptor buffer has unknown version (%lu)\n",
(unsigned long) buffer[2]);
if (buffer[3] != 4096)
dev_warn(&wdev->dev, "Dell descriptor buffer has invalid buffer length (%d)\n",