Mike Leach 39a7661dcf coresight: Fix uninitialised pointer bug in etm_setup_aux() ... Commit [bb1860efc8] changed the sink handling code introducing an uninitialised pointer bug. This results in the default sink selection failing. Prior to commit: static void etm_setup_aux(...) <snip> struct coresight_device *sink; <snip> /* First get the selected sink from user space. */ if (event->attr.config2) { id = (u32)event->attr.config2; sink = coresight_get_sink_by_id(id); } else { sink = coresight_get_enabled_sink(true); } <ctd> *sink always initialised - possibly to NULL which triggers the automatic sink selection. After commit: static void etm_setup_aux(...) <snip> struct coresight_device *sink; <snip> /* First get the selected sink from user space. */ if (event->attr.config2) { id = (u32)event->attr.config2; sink = coresight_get_sink_by_id(id); } <ctd> *sink pointer uninitialised when not providing a sink on the perf command line. This breaks later checks to enable automatic sink selection. Fixes: bb1860efc8 ("coresight: etm: perf: Sink selection using sysfs is deprecated") Signed-off-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Link: https://lore.kernel.org/r/20201029164559.1268531-3-mathieu.poirier@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-10-29 20:10:25 +01:00
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coresight	coresight: Fix uninitialised pointer bug in etm_setup_aux()	2020-10-29 20:10:25 +01:00
intel_th	intel_th: pci: Add Alder Lake CPU support	2020-10-05 12:43:54 +02:00
stm	stm class: ftrace: Use different channel accroding to CPU	2020-10-05 12:43:54 +02:00
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00