Commit 9ef3c511 authored by Sudeep Holla's avatar Sudeep Holla Committed by Jassi Brar

mailbox: mailbox-test: set tdev->signal to NULL after freeing

tdev->signal is not set NULL after it's freed. This will cause random
exceptions when the stale pointer is accessed after tdev->signal is
freed. Also, since tdev->signal allocation is skipped the next time
it's written, this leads to continuous fault finally leading to the
total death of the system.

Fixes: d1c2f87c ("mailbox: mailbox-test: Prevent memory leak")
Signed-off-by: default avatarSudeep Holla <sudeep.holla@arm.com>
Acked-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarJassi Brar <jaswinder.singh@linaro.org>
parent 8714f8f5
......@@ -133,6 +133,7 @@ static ssize_t mbox_test_message_write(struct file *filp,
out:
kfree(tdev->signal);
kfree(tdev->message);
tdev->signal = NULL;
return ret < 0 ? ret : count;
}
......
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