usb: gadget: f_hid: fix: Move IN request allocation to set_alt()

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Since commit: ba1582f222 ("usb: gadget: f_hid: use alloc_ep_req()")
we cannot allocate any requests in bind() as we check if we should
align request buffer based on endpoint descriptor which is assigned
in set_alt().

Allocating request in bind() function causes a NULL pointer
dereference.

This commit moves allocation of IN request from bind() to set_alt()
to prevent this issue.

Fixes: ba1582f222 ("usb: gadget: f_hid: use alloc_ep_req()")
Cc: stable@vger.kernel.org
Tested-by: David Lechner <david@lechnology.com>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

...

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Krzysztof Opasiak 2017-01-24 03:27:24 +01:00 • committed by Felipe Balbi

parent 977ac78950

commit 749494b6bd

1 changed files with 67 additions and 22 deletions

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drivers/usb/gadget/function/f_hid.c

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