If IRQ occurs between calling dsps_setup_optional_vbus_irq() and dsps_create_musb_pdev(), then null pointer dereference occurs since glue->musb wasn't initialized yet. The patch puts initializing of neccesery data before registration of the interrupt handler. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Nadezda Lutovinova <lutovinova@ispras.ru> Link: https://lore.kernel.org/r/20210819163323.17714-1-lutovinova@ispras.ru Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.
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