PCI: endpoint: Do not reset *command* inadvertently

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pci_epf_test_cmd_handler() is the delayed work function which reads
*command* (set by the host) and performs various actions requested by the
host periodically. If the value in *command* is '0', it goes to the
reset_handler where it resets *command* to '0' and queues
pci_epf_test_cmd_handler().

However if the host writes a value to the *command* just after the
pci-epf-test driver checks *command* for '0' and before the control goes to
reset_handler, the *command* will be reset to '0' and the pci-epf-test
driver won't be able to perform the actions requested by the host.  Fix it
here by not resetting the *command* in the reset_handler.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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Kishon Vijay Abraham I 2017-08-18 20:27:58 +05:30 • committed by Bjorn Helgaas

parent 09232c7acb

commit 3ecf3232c5

1 changed files with 11 additions and 9 deletions

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drivers/pci/endpoint/functions/pci-epf-test.c

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