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authorGuenter Roeck <guenter.roeck@ericsson.com>2011-09-24 15:27:04 -0700
committerGuenter Roeck <guenter.roeck@ericsson.com>2011-09-28 08:19:21 -0700
commit20ecb499f64a7e8e7fe03f6098ab25c71b7a6481 (patch)
tree6cd20d373c279a92acb8917c2945c6132ce66486
parent0eb9782ad9b1bd496ba61cd5ea27ccb8db21e885 (diff)
hwmon: (coretemp) Avoid leaving around dangling pointer
Storing the struct temp_data pointer allocated from create_core_data() when returning an error has the potential of leaving around a pointer to freed memory. Reset it to NULL for error returns. Reported-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org>
-rw-r--r--drivers/hwmon/coretemp.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index cf5b1de32c0a..932383786642 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -506,6 +506,7 @@ static int create_core_data(struct platform_device *pdev,
return 0;
exit_free:
+ pdata->core_data[attr_no] = NULL;
kfree(tdata);
return err;
}