sound: line6: move to use usb_control_msg_send() and usb_control_msg_recv()

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The usb_control_msg_send() and usb_control_msg_recv() calls can return
an error if a "short" write/read happens, and they can handle data off
of the stack, so move the driver over to using those calls instead,
saving some logic when dynamically allocating memory.

Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Vasily Khoruzhick <anarsoul@gmail.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20200914153756.3412156-9-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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This commit is contained in:

Greg Kroah-Hartman 2020-09-14 17:37:53 +02:00

parent aea67cc141

commit f7ef7614f8

3 changed files with 37 additions and 57 deletions

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69

sound/usb/line6/driver.c

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17

sound/usb/line6/podhd.c

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8

sound/usb/line6/toneport.c

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