From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
Smatch detected two memory leaks on saved_ec:
drivers/acpi/ec.c:1070 acpi_ec_ecdt_probe() warn: possible
memory leak of 'saved_ec'
drivers/acpi/ec.c:1109 acpi_ec_ecdt_probe() warn: possible
memory leak of 'saved_ec'
Free saved_ec on these two error exit paths to stop the memory
leak. Note that saved_ec maybe null, but kfree on null is allowed.
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
drivers/acpi/ec.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index ad11ba4..9800f50 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1066,8 +1066,10 @@ int __init acpi_ec_ecdt_probe(void)
/* fall through */
}
- if (EC_FLAGS_SKIP_DSDT_SCAN)
+ if (EC_FLAGS_SKIP_DSDT_SCAN) {
+ kfree(saved_ec);
return -ENODEV;
+ }
/* This workaround is needed only on some broken machines,
* which require early EC, but fail to provide ECDT */
@@ -1105,6 +1107,7 @@ install:
}
error:
kfree(boot_ec);
+ kfree(saved_ec);
boot_ec = NULL;
return -ENODEV;
}
--
2.0.1
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