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authorHanjun Guo <guohanjun@huawei.com>2020-07-22 17:40:40 +0800
committerJassi Brar <jaswinder.singh@linaro.org>2020-08-03 23:25:19 -0500
commit425ab036754af08bb0dc8273efad686484c98f3c (patch)
tree1a952a7c1649eb85e49e7eed217103328b563406 /drivers
parentc3917df54cf925754e74e48748493ac5f232a2f1 (diff)
downloadlinux-425ab036754af08bb0dc8273efad686484c98f3c.tar.bz2
mailbox: pcc: Put the PCCT table for error path
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mailbox/pcc.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index 8c7fac38bb1c..ef9ecd1f5958 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -457,14 +457,17 @@ static int __init acpi_pcc_probe(void)
pr_warn("Error parsing PCC subspaces from PCCT\n");
else
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),
GFP_KERNEL);
if (!pcc_mbox_channels) {
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);
@@ -535,6 +538,8 @@ err_free_db_vaddr:
kfree(pcc_doorbell_vaddr);
err_free_mbox:
kfree(pcc_mbox_channels);
+err_put_pcct:
+ acpi_put_table(pcct_tbl);
return rc;
}