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Subject[PATCH 05/19] media: am437x-vpfe: fix handling platform_get_irq result
Date
The function can return negative value.

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

[1]: http://permalink.gmane.org/gmane.linux.kernel/2046107

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
---
Hi,

To avoid problems with too many mail recipients I have sent whole
patchset only to LKML. Anyway patches have no dependencies.

Regards
Andrzej
---
drivers/media/platform/am437x/am437x-vpfe.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c
index c8447fa..c9cbb60 100644
--- a/drivers/media/platform/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/am437x/am437x-vpfe.c
@@ -2546,11 +2546,12 @@ static int vpfe_probe(struct platform_device *pdev)
if (IS_ERR(ccdc->ccdc_cfg.base_addr))
return PTR_ERR(ccdc->ccdc_cfg.base_addr);

- vpfe->irq = platform_get_irq(pdev, 0);
- if (vpfe->irq <= 0) {
+ ret = platform_get_irq(pdev, 0);
+ if (ret <= 0) {
dev_err(&pdev->dev, "No IRQ resource\n");
return -ENODEV;
}
+ vpfe->irq = ret;

ret = devm_request_irq(vpfe->pdev, vpfe->irq, vpfe_isr, 0,
"vpfe_capture0", vpfe);
--
1.9.1


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