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Legacy PCI suspend-resume handlers are called with interrupts enabled. But cx8800_suspend/cx8800_resume and cx8802_suspend_common/cx8802_resume_common use spin_lock/spin_unlock functions to acquire dev->slock, while the same lock is acquired in the corresponding irq-handlers: cx8800_irq and cx8802_irq. That means a deadlock is possible if an interrupt happens while suspend or resume owns the lock. The patch replaces spin_lock/spin_unlock with spin_lock_irqsave/spin_unlock_irqrestore. Found by Linux Driver Verification project (linuxtesting.org). [mchehab@redhat.com: Fix CodingStyle] Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> |
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| .. | ||
| b2c2 | ||
| bt8xx | ||
| cx18 | ||
| cx88 | ||
| cx23885 | ||
| cx25821 | ||
| ddbridge | ||
| dm1105 | ||
| ivtv | ||
| mantis | ||
| meye | ||
| ngene | ||
| pluto2 | ||
| pt1 | ||
| saa7134 | ||
| saa7146 | ||
| saa7164 | ||
| sta2x11 | ||
| ttpci | ||
| zoran | ||
| Kconfig | ||
| Makefile | ||