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mailbox: pcc: Put the PCCT table for error path

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The acpi_get_table() should be coupled with acpi_put_table() if
the mapped table is not used at runtime to release the table
mapping.

In acpi_pcc_probe(), the PCCT table entries will be used as private
data for communication chan at runtime, but the table should be put
for error path.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
This commit is contained in:
Hanjun Guo 2020-07-22 17:40:40 +08:00 • committed by Jassi Brar
parent c3917df54c
commit 425ab03675
1 changed files with 7 additions and 2 deletions
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9
drivers/mailbox/pcc.c
View file

@ -457,14 +457,17 @@ static int __init acpi_pcc_probe(void)
pr_warn("Error parsing PCC subspaces from PCCT\n"); pr_warn("Error parsing PCC subspaces from PCCT\n");
else else
pr_warn("Invalid PCCT: %d PCC subspaces\n", count); pr_warn("Invalid PCCT: %d PCC subspaces\n", count);
return -EINVAL;
rc = -EINVAL;
goto err_put_pcct;
} }
pcc_mbox_channels = kcalloc(count, sizeof(struct mbox_chan), pcc_mbox_channels = kcalloc(count, sizeof(struct mbox_chan),
GFP_KERNEL); GFP_KERNEL);
if (!pcc_mbox_channels) { if (!pcc_mbox_channels) {
pr_err("Could not allocate space for PCC mbox channels\n"); pr_err("Could not allocate space for PCC mbox channels\n");
return -ENOMEM; rc = -ENOMEM;
goto err_put_pcct;
} }
pcc_doorbell_vaddr = kcalloc(count, sizeof(void *), GFP_KERNEL); pcc_doorbell_vaddr = kcalloc(count, sizeof(void *), GFP_KERNEL);
@ -535,6 +538,8 @@ err_free_db_vaddr:
kfree(pcc_doorbell_vaddr); kfree(pcc_doorbell_vaddr);
err_free_mbox: err_free_mbox:
kfree(pcc_mbox_channels); kfree(pcc_mbox_channels);
err_put_pcct:
acpi_put_table(pcct_tbl);
return rc; return rc;
} }