s390/pci: handle events for unused functions

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Receiving error events for a pci function that's currently not in use
will crash the kernel. For example the procedure for FW upgrades might
include:
* remove the function from Linux
* apply FW upgrade
* rescan for new functions

Receiving an event during the FW upgrade will result in a use after free
when printing the functions name. Just print "n/a" in such cases.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

...

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Sebastian Ott 2015-07-28 19:11:40 +02:00 • committed by Martin Schwidefsky

parent 2b1df72416

commit 515f022e8b

1 changed files with 2 additions and 4 deletions

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arch/s390/pci/pci_event.c

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