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usb: mv_udc: Clean up the initial variable check
Clean up the code that checks the validity of a USB gadget driver
in usb_gadget_register_driver(). Moreover, limit the speed of the
driver to either FULL or HIGH, this is more precise and once we
have xHCI support, also more correct.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Lei Wen <leiwen@marvell.com>
Cc: Otavio Salvador <otavio@ossystems.com.br>
Cc: Stefano Babic <sbabic@denx.de>
Showing
1 changed file
with
5 additions
and
6 deletions
Side-by-side Diff
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@@ -471,13 +471,12 @@ |
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471
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struct mv_udc *udc; |
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int ret; |
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473 |
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474
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- if (!driver |
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475
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- || driver->speed < USB_SPEED_FULL |
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476
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- || !driver->bind |
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477
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- || !driver->setup) { |
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478
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- DBG("bad parameter.\n"); |
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+ if (!driver) |
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return -EINVAL; |
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- } |
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+ if (!driver->bind || !driver->setup || !driver->disconnect) |
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+ return -EINVAL; |
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+ if (driver->speed != USB_SPEED_FULL && driver->speed != USB_SPEED_HIGH) |
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+ return -EINVAL; |
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ret = usb_lowlevel_init(0, (void **)&controller.ctrl); |
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if (ret) |
