Jia-Ju Bai 750a95d637 uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol() ... [ Upstream commit b74351287d ] The driver may sleep while holding a spinlock. The function call path (from bottom to top) in Linux 4.19 is: kernel/irq/manage.c, 523: synchronize_irq in disable_irq drivers/uio/uio_dmem_genirq.c, 140: disable_irq in uio_dmem_genirq_irqcontrol drivers/uio/uio_dmem_genirq.c, 134: _raw_spin_lock_irqsave in uio_dmem_genirq_irqcontrol synchronize_irq() can sleep at runtime. To fix this bug, disable_irq() is called without holding the spinlock. This bug is found by a static analysis tool STCheck written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Link: https://lore.kernel.org/r/20191218094405.6009-1-baijiaju1990@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-02-24 08:36:27 +01:00
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Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
uio.c	driver: uio: fix possible use-after-free in __uio_register_device	2019-01-31 16:36:52 +01:00
uio_aec.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333	2019-06-05 17:37:06 +02:00
uio_cif.c	uio: add SPDX license tags	2018-07-21 15:41:20 +02:00
uio_dmem_genirq.c	uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol()	2020-02-24 08:36:27 +01:00
uio_fsl_elbc_gpcm.c	uio: uio_fsl_elbc_gpcm: convert platform driver to use dev_groups	2019-08-02 12:56:51 +02:00
uio_hv_generic.c	uio_hv_generic: set callbacks on open	2018-12-11 14:23:17 +01:00
uio_mf624.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61	2019-05-24 17:36:45 +02:00
uio_netx.c	uio: add SPDX license tags	2018-07-21 15:41:20 +02:00
uio_pci_generic.c	uio/uio_pci_generic: Disable bus-mastering on release	2019-01-31 16:22:51 +01:00
uio_pdrv_genirq.c	uio: uio_pdrv_genirq: Make UIO name controllable via DT node property	2019-09-04 13:42:43 +02:00
uio_pruss.c	uio: pruss: fix error handling in probe	2018-08-02 10:14:26 +02:00
uio_sercos3.c	uio: add SPDX license tags	2018-07-21 15:41:20 +02:00