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OpenCloudOS-Kernel
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OpenCloudOS-Kernel/drivers/usb/gadget/udc
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Jia-Ju Bai f36b507c14 usb: gadget: r8a66597: Fix a possible sleep-in-atomic-context bugs in r8a66597_queue() 
The driver may sleep in an interrupt handler.
The function call path (from bottom to top) in Linux-4.16.7 is:

[FUNC] r8a66597_queue(GFP_KERNEL)
drivers/usb/gadget/udc/r8a66597-udc.c, 1193:
		r8a66597_queue in get_status
drivers/usb/gadget/udc/r8a66597-udc.c, 1301:
		get_status in setup_packet
drivers/usb/gadget/udc/r8a66597-udc.c, 1381:
		setup_packet in irq_control_stage
drivers/usb/gadget/udc/r8a66597-udc.c, 1508:
		irq_control_stage in r8a66597_irq (interrupt handler)

To fix this bug, GFP_KERNEL is replaced with GFP_ATOMIC.

This bug is found by my static analysis tool (DSAC-2) and checked by
my code review.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
 		2018-07-17 10:12:51 +03:00
..
aspeed-vhub usb: gadget: aspeed-vhub: Fix SETUP packets with OUT data phase 2018-07-17 10:12:51 +03:00
bdc treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
Kconfig usb: changes for v4.18 merge window 2018-05-24 17:46:53 +02:00
Makefile usb/gadget: Add driver for Aspeed SoC virtual hub 2018-05-15 10:06:53 +03:00
amd5536udc.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
amd5536udc_pci.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
at91_udc.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
at91_udc.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
atmel_usba_udc.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
atmel_usba_udc.h USB: udc: atmel_usba_udc: no need to check return value of debugfs_create functions 2018-05-31 12:54:22 +02:00
bcm63xx_udc.c USB: gadget: udc: bcm63xx_udc: no need to check return value of debugfs_create functions 2018-05-31 12:54:22 +02:00
core.c usb: gadget: udc: core: Document the relation between usb_ep_queue() and completion callback 2018-04-23 14:07:36 +03:00
dummy_hcd.c usb: gadget: udc: Use scnprintf() instead of snprintf() 2018-03-13 10:47:51 +02:00
fotg210-udc.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
fotg210.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
fsl_mxc_udc.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
fsl_qe_udc.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
fsl_qe_udc.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
fsl_udc_core.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
fsl_usb2_udc.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
fusb300_udc.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
fusb300_udc.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
goku_udc.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
goku_udc.h usb: gadget: udc: change comparison to bitshift when dealing with a mask 2018-03-08 15:12:00 +02:00
gr_udc.c USB: gadget: udc: gr_udc: no need to check return value of debugfs_create functions 2018-05-31 12:54:22 +02:00
gr_udc.h USB: gadget: udc: gr_udc: no need to check return value of debugfs_create functions 2018-05-31 12:54:22 +02:00
lpc32xx_udc.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
m66592-udc.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
m66592-udc.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
mv_u3d.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
mv_u3d_core.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
mv_udc.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
mv_udc_core.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
net2272.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
net2272.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
net2280.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
net2280.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
omap_udc.c proc: introduce proc_create_single{,_data} 2018-05-16 07:23:35 +02:00
omap_udc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pch_udc.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
pxa25x_udc.c USB: gadget: pxa25x: Re-use DEFINE_SHOW_ATTRIBUTE() macro 2018-03-08 15:12:00 +02:00
pxa25x_udc.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
pxa27x_udc.c USB: gadget: udc: pxa27x_udc: no need to check return value of debugfs_create functions 2018-05-31 12:54:22 +02:00
pxa27x_udc.h USB: gadget: udc: pxa27x_udc: no need to check return value of debugfs_create functions 2018-05-31 12:54:22 +02:00
r8a66597-udc.c usb: gadget: r8a66597: Fix a possible sleep-in-atomic-context bugs in r8a66597_queue() 2018-07-17 10:12:51 +03:00
r8a66597-udc.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
renesas_usb3.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
s3c-hsudc.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
s3c2410_udc.c USB: gadget: udc: s3c2410_udc: no need to check return value of debugfs_create functions 2018-05-31 12:54:23 +02:00
s3c2410_udc.h USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
snps_udc_core.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
snps_udc_plat.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
trace.c USB: gadget: udc: Remove redundant license text 2017-11-07 15:45:02 +01:00
trace.h gadget event trace : add request pointer 2017-12-11 12:36:49 +02:00
udc-xilinx.c usb: gadget: udc-xilinx: remove redundant pointer udc 2017-12-11 12:36:51 +02:00