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* [PATCH] firmware/psci: psci_checker: fix application of sizeof to pointer
@ 2020-11-24  0:58 Tian Tao
  0 siblings, 0 replies; only message in thread
From: Tian Tao @ 2020-11-24  0:58 UTC (permalink / raw)
  To: mark.rutland, lorenzo.pieralisi, linux-arm-kernel, linux-kernel

sizeof when applied to a pointer typed expression gives the size of
the pointer.
The proper fix in this particular case is to code sizeof(*cpu_groups)
instead of sizeof(cpu_groups).
This issue was detected with the help of Coccinelle.

Signed-off-by: Tian Tao <>
 drivers/firmware/psci/psci_checker.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/psci/psci_checker.c b/drivers/firmware/psci/psci_checker.c
index 9a369a2..116eb46 100644
--- a/drivers/firmware/psci/psci_checker.c
+++ b/drivers/firmware/psci/psci_checker.c
@@ -155,7 +155,7 @@ static int alloc_init_cpu_groups(cpumask_var_t **pcpu_groups)
 	if (!alloc_cpumask_var(&tmp, GFP_KERNEL))
 		return -ENOMEM;
-	cpu_groups = kcalloc(nb_available_cpus, sizeof(cpu_groups),
+	cpu_groups = kcalloc(nb_available_cpus, sizeof(*cpu_groups),
 	if (!cpu_groups) {

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2020-11-24  0:58 [PATCH] firmware/psci: psci_checker: fix application of sizeof to pointer Tian Tao

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