usb: gadget: f_hid: Use spinlock instead of mutex

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commit 33e4c1a998 upstream.

As IN request has to be allocated in set_alt() and released in
disable() we cannot use mutex to protect it as we cannot sleep
in those funcitons. Let's replace this mutex with a spinlock.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Krzysztof Opasiak 2017-01-19 18:55:29 +01:00 • committed by Greg Kroah-Hartman

parent d3acd94c0f

commit 6d0511ed15

1 changed files with 34 additions and 23 deletions

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drivers/usb/gadget/function/f_hid.c

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