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Subject[PATCH 1/3] HSI: omap_ssi: Use devm_kcalloc() in ssi_add_controller()
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Tue, 25 Apr 2017 11:20:41 +0200

* A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "devm_kcalloc".

This issue was detected by using the Coccinelle software.

* Replace the specification of a data type by a pointer dereference
to make the corresponding size determination a bit safer according to
the Linux coding style convention.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/hsi/controllers/omap_ssi_core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hsi/controllers/omap_ssi_core.c b/drivers/hsi/controllers/omap_ssi_core.c
index 9a29b34ed2c8..464db6d33afb 100644
--- a/drivers/hsi/controllers/omap_ssi_core.c
+++ b/drivers/hsi/controllers/omap_ssi_core.c
@@ -421,8 +421,8 @@ static int ssi_add_controller(struct hsi_controller *ssi,
goto out_err;
}

- omap_ssi->port = devm_kzalloc(&ssi->device,
- sizeof(struct omap_ssi_port *) * ssi->num_ports, GFP_KERNEL);
+ omap_ssi->port = devm_kcalloc(&ssi->device, ssi->num_ports,
+ sizeof(*omap_ssi->port), GFP_KERNEL);
if (!omap_ssi->port) {
err = -ENOMEM;
goto out_err;
--
2.12.2
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