subject:"\[PATCH for 4.9 35\/59\] serial\: 8250_port\: Remove dangerous pr_debug\(\)"

[PATCH for 4.9 35/59] serial: 8250_port: Remove dangerous pr_debug()

2017-09-14 Thread Levin, Alexander (Sasha Levin)

From: Alexey Brodkin [ Upstream commit 699a11ba7ec869b006623182881f2f1f5b4aea53 ] With CONFIG_DYNAMIC_DEBUG if dyndbg enables debug output in 8250_port.c deadlock happens inevitably on UART IRQ handling. That's the problematic execution path:

[PATCH for 4.9 35/59] serial: 8250_port: Remove dangerous pr_debug()

2017-09-14 Thread Levin, Alexander (Sasha Levin)

From: Alexey Brodkin [ Upstream commit 699a11ba7ec869b006623182881f2f1f5b4aea53 ] With CONFIG_DYNAMIC_DEBUG if dyndbg enables debug output in 8250_port.c deadlock happens inevitably on UART IRQ handling. That's the problematic execution path: