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Paul Cercueil 685f5f2410 usb: musb: jz4740: Prevent lockup when CONFIG_SMP is set 
The function dma_controller_irq() locks up the exact same spinlock we
locked before calling it, which obviously resulted in a deadlock when
CONFIG_SMP was enabled. This flew under the radar as none of the boards
supported by this driver needs SMP.

Fixes: 57aadb46bd ("usb: musb: jz4740: Add support for DMA")

Cc: stable@vger.kernel.org
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Bin Liu <b-liu@ti.com>
Link: https://lore.kernel.org/r/20200525025049.3400-6-b-liu@ti.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-25 13:36:30 +02:00
arch USB: changes for v5.8 merge window 2020-05-25 13:28:20 +02:00
block
certs
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Documentation USB: changes for v5.8 merge window 2020-05-25 13:28:20 +02:00
drivers usb: musb: jz4740: Prevent lockup when CONFIG_SMP is set 2020-05-25 13:36:30 +02:00
fs Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-05-17 12:23:37 -07:00
include USB: changes for v5.8 merge window 2020-05-25 13:28:20 +02:00
init A single fix for early boot crashes of kernels built with gcc10 and 2020-05-17 11:08:29 -07:00
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MAINTAINERS Merge 5.7-rc6 into usb-next 2020-05-18 07:55:55 +02:00
Makefile Linux 5.7-rc6 2020-05-17 16:48:37 -07:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.