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firmware: arm_scmi: Make Rx chan_setup fail on memory errors

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[ Upstream commit be9ba1f7f9e0b565b19f4294f5871da9d654bc6d ]

SCMI Rx channels are optional and they can fail to be setup when not
present but anyway channels setup routines must bail-out on memory errors.

Make channels setup, and related probing, fail when memory errors are
reported on Rx channels.

Fixes: 5c8a47a5a91d ("firmware: arm_scmi: Make scmi core independent of the transport type")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20221028140833.280091-4-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Cristian Marussi 2022-10-28 15:08:29 +01:00 committed by Greg Kroah-Hartman
parent e514d67b23
commit 3653cdc21b
1 changed files with 6 additions and 2 deletions
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8
drivers/firmware/arm_scmi/driver.c
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@ -1516,8 +1516,12 @@ scmi_txrx_setup(struct scmi_info *info, struct device *dev, int prot_id)
{
int ret = scmi_chan_setup(info, dev, prot_id, true);
if (!ret) /* Rx is optional, hence no error check */
scmi_chan_setup(info, dev, prot_id, false);
if (!ret) {
/* Rx is optional, report only memory errors */
ret = scmi_chan_setup(info, dev, prot_id, false);
if (ret && ret != -ENOMEM)
ret = 0;
}
return ret;
}