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linux/drivers/usb/musb
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Dinghao Liu e4befc121d usb: musb: Fix runtime PM imbalance on error 
When copy_from_user() returns an error code, there
is a runtime PM usage counter imbalance.

Fix this by moving copy_from_user() to the beginning
of this function.

Fixes: 7b6c1b4c0e ("usb: musb: fix runtime PM in debugfs")

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Cc: stable@vger.kernel.org
Signed-off-by: Bin Liu <b-liu@ti.com>
Link: https://lore.kernel.org/r/20200525025049.3400-7-b-liu@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-25 13:36:31 +02:00
..
am35x.c usb: musb: remove references to default_a of struct usb_otg 2018-05-22 12:03:25 +02:00
cppi_dma.c
cppi_dma.h
da8xx.c usb: musb: remove an unused variable 2018-05-31 12:44:39 +02:00
davinci.c usb: musb: davinci: Convert to use GPIO descriptor 2020-01-15 14:47:00 +01:00
davinci.h USB: musb: Use the correct style for SPDX License Identifier 2020-04-16 14:32:47 +02:00
jz4740.c usb: musb: jz4740: Prevent lockup when CONFIG_SMP is set 2020-05-25 13:36:30 +02:00
Kconfig usb: musb: jz4740: Unconditionally depend on devicetree 2020-03-17 20:03:27 +01:00
Makefile usb: musb: remove dummy driver musb_am335x.c 2020-01-15 14:47:00 +01:00
mediatek.c usb: musb: mediatek: add reset FADDR to zero in reset interrupt handle 2020-05-25 13:36:30 +02:00
musb_core.c usb: musb: use true for 'use_dma' 2020-05-25 13:36:30 +02:00
musb_core.h USB: musb: Use the correct style for SPDX License Identifier 2020-04-16 14:32:47 +02:00
musb_cppi41.c usb: musb: remove duplicated quirks flag 2018-05-22 12:03:24 +02:00
musb_debug.h USB: musb: Use the correct style for SPDX License Identifier 2020-04-16 14:32:47 +02:00
musb_debugfs.c usb: musb: Fix runtime PM imbalance on error 2020-05-25 13:36:31 +02:00
musb_dma.h USB: musb: Use the correct style for SPDX License Identifier 2020-04-16 14:32:47 +02:00
musb_dsps.c usb: musb: dsps: create debugfs directory under usb root 2019-11-14 11:16:35 +08:00
musb_gadget_ep0.c usb: musb: gadget: misplaced out of bounds check 2018-03-29 18:37:28 +02:00
musb_gadget.c usb: Spelling s/enpoint/endpoint/ 2019-11-04 15:53:00 +01:00
musb_gadget.h USB: musb: Use the correct style for SPDX License Identifier 2020-04-16 14:32:47 +02:00
musb_host.c usb: musb: return -ESHUTDOWN in urb when three-strikes error happened 2020-05-25 13:36:30 +02:00
musb_host.h USB: musb: Use the correct style for SPDX License Identifier 2020-04-16 14:32:47 +02:00
musb_io.h USB: musb: Use the correct style for SPDX License Identifier 2020-04-16 14:32:47 +02:00
musb_regs.h USB: musb: Use the correct style for SPDX License Identifier 2020-04-16 14:32:47 +02:00
musb_trace.c USB: musb: Remove redundant license text 2017-11-07 15:45:01 +01:00
musb_trace.h USB: musb: Use the correct style for SPDX License Identifier 2020-04-16 14:32:47 +02:00
musb_virthub.c usb: musb: remove duplicated port mode enum 2018-05-22 12:03:25 +02:00
musbhsdma.c usb: musb: Add musb_clearb/w() interface 2020-01-15 14:46:59 +01:00
omap2430.c usb: musb: Get rid of omap2430_musb_set_vbus() 2020-01-15 14:46:56 +01:00
omap2430.h USB: musb: Use the correct style for SPDX License Identifier 2020-04-16 14:32:47 +02:00
sunxi.c usb: musb: Add musb_clearb/w() interface 2020-01-15 14:46:59 +01:00
tusb6010_omap.c USB: musb: Remove redundant license text 2017-11-07 15:45:01 +01:00
tusb6010.c usb: musb: tusb6010: fix a possible missing data type replacement 2020-03-17 20:03:28 +01:00
tusb6010.h USB: musb: Use the correct style for SPDX License Identifier 2020-04-16 14:32:47 +02:00
ux500_dma.c usb: musb/ux500: Use dma_request_chan() instead dma_request_slave_channel() 2020-01-15 14:46:58 +01:00
ux500.c usb: musb: remove references to default_a of struct usb_otg 2018-05-22 12:03:25 +02:00