usb: gadget: dummy_hcd: in transfer(), return data sent, not limit

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dummy_timer uses transfer() to update transfer limit. However,
limit passed to dummy_timer changes depending on transfer type,
so the actual limit is overwritten.

This can cause unpredictably slow / fast bulk transfers when
coupled with control / interrupt transfers.

Fix by returning actual amount of data sent in transfer() and
substracting from total.

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

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Igor Kotrasinski 2015-09-15 16:55:32 +02:00 • committed by Felipe Balbi

parent e42bd6a54b

commit 9a9ce1dfae

1 changed files with 4 additions and 2 deletions

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drivers/usb/gadget/udc/dummy_hcd.c

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