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HSI: omap_ssi: fix handling ida_simple_get result

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The function can return negative value.

The problem has been detected using proposed semantic patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].

[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Andrzej Hajda 2015-09-21 15:33:43 +02:00 committed by Sebastian Reichel
parent 403c5c0650
commit 6bf6ded300
1 changed files with 3 additions and 4 deletions
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7
drivers/hsi/controllers/omap_ssi.c
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@ -323,11 +323,10 @@ static int __init ssi_add_controller(struct hsi_controller *ssi,
return -ENOMEM; return -ENOMEM;
} }
ssi->id = ida_simple_get(&platform_omap_ssi_ida, 0, 0, GFP_KERNEL); err = ida_simple_get(&platform_omap_ssi_ida, 0, 0, GFP_KERNEL);
if (ssi->id < 0) { if (err < 0)
err = ssi->id;
goto out_err; goto out_err;
} ssi->id = err;
ssi->owner = THIS_MODULE; ssi->owner = THIS_MODULE;
ssi->device.parent = &pd->dev; ssi->device.parent = &pd->dev;